Rotator cuff muscles teach me anatomy

Rotator cuff muscles: Anatomy, functions, injury Kenhu

What Is It? Your rotator cuff is made up of muscles and tendons that keep the ball (head) of your upper-arm bone (humerus) in your shoulder socket. It also helps you raise and rotate your arm. Each.. The Intrinsic Muscles of the Shoulder. View Article. Anatomy Video Lectures. START NOW FOR FREE. TeachMe Anatomy. Part of the TeachMe Series. The medical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes. This information is intended for medical. Rotator Cuff The rotator cuff is a group of four muscles and tendons that surround the glenohumeral joint. A muscle contracts to move bones; the tendons are the attachment of the muscle to the bone. The rotator cuff muscles are important in movements of the ball-and-socket shoulder joint The rotator cuff connects the humerus to the scapula and is made up of the tendons of four muscles, the supraspinatus, infraspinatus, teres minor and the subscapularis. Tendons attach muscle to bone. Muscles in turn move bones by pulling on the tendons. The muscles of the rotator cuff keep the humerus tightly in the socket The tendons of rotator cuff muscles blend with the fibrous capsule of the glenohumeral joint and form a tendinous sleeve called the rotator capsule. Each muscle has its own pulling axis that results in a certain movement (prime mover), while altogether, via rotator capsule, they create a concavity compression

Subscapularis Muscle - Attachments, Action & Innervation

Rotator Cuff: Anatomy, Function, and Treatmen

The Scapula - Surfaces - Fractures - Winging - TeachMeAnatomyshoulder joint muscles - Google Search | Pta student

Rotator Cuff Anatomy: Muscles, Function, and Picture

The rotator cuff is made up of four small muscles and their tendons that cover the head of your upper arm bone and keep it in the shoulder socket. Your rotator cuff helps provide shoulder motion and stability. Learn more: Biceps Tendinitis, Shoulder Impingement/Rotator Cuff Tendinitis. Tendon Tear Teres major muscle (Musculus teres major) The teres major is a thick muscle of the shoulder joint.It spans from the inferior aspect of the scapula to the proximal part of the humeral shaft.Unlike the teres minor, the teres major muscle does not attach to the capsule of the glenohumeral joint.Thus it is not regarded as part of the rotator cuff muscles significant percent of all tears of the rotator cuff are asymptomatic. The supraspinatus, a small and relatively weak muscle, is in a key position and is therefore susceptible to overuse and. injury. Given the hypovascularity of the tissues, it is not surprising. that most tears originate in this tendon

Rotator cuff muscles. The first component of MRI RC evaluation involves the muscle bellies on the T1-weighted and T2-weighted sagittal oblique sequences. As described previously, the presence of fatty infiltration or muscle volume atrophy is best evaluated on the T1-weighted sagittal oblique images Rotator Cuff Tear-Stefano Gumina 2016-11-14 This handbook provides detailed, state of the art information on simple and complex rotator cuff tears that will be of Teach Me Anatomy Glenohumeral Join

The Shoulder Joint - Structure - Movement - TeachMeAnatom

The rotator cuff muscles are important in movements of the ball-and-socket shoulder joint. The rotator cuff is important in many routine activities, and when injured can cause severe pain. When the rotator cuff is inflamed or irritated, this is referred to as rotator cuff tendonitis or shoulder bursitis Rotator Cuff [P]Rehab Program: 3 phase, 16-week program designed to address rotator cuff-related shoulder pain. Educational videos and progressions, especially in the early phases, are specific to the rotator cuff and reflect how we handle rotator cuff rehab in-person. As the program progresses there is overlap in later phases with the Shoulder. Very few archers in this study had a regular weight-training program that specifically dealt with the rotator cuff muscles identified to be at risk for injury. It is strongly recommended that archers incorporate exercises specifically designed to strengthen the supraspinatus, infraspinatus and teres minor muscle

The anatomy of this joint permits a large range of movement, but it sacrifices stability. Teach patient/carers/relatives how to position the limb so that the weight of the arm is supported Strengthening exercises to re-establish the strength of the rotator cuff muscles is recommended.. Special Tests for Thoracic Outlet Syndrome. Adson's manoeuvre - Palpate the radial pulse on the affected side, with the arm initially abducted to 30 degrees, then ask the patient to turn their head and look at the affected side's shoulder; fully abduct, extend, and laterally rotate the shoulder . Any decrease or loss of pulse is suggestive of TO They're supported by the rotator cuff muscles which help maintain the alignment of the upper arm. Your triceps also have the challenging job of keeping your elbows straight. Your serratus anterior muscles laterally rotate and firm your scapulae against your ribs. Lastly, your forearm and hand muscles work to support balance in the posture Rotator Cuff Tear Introduction. The rotator cuff is a series of 4 muscles in the shoulder that form a cuff of tissue around the humerus bone in the shoulder joint. These muscles provide rotational strength to the shoulder. Tears in the tendons of these muscles are called rotator cuff tears. The most commonly affected muscle is the supraspinatus You can remember the four rotator cuff muscles by the acronym SITS, for subscapularis, infraspinatus, teres minor, and supraspinatus. They all originate on the scapula (shoulder blade) and insert on the humerus (upper arm bone), near the humeral head (the ball that fits in the shoulder joint)

Rotator cuff - Anatom

  1. The brachioradialis (or brachioradialis muscle, latin: musculus brachioradialis) is a superficial muscle of the forearm that belongs to the lateral muscle group.. Origin. The brachioradialis originates from the distal part of the lateral edge of the humerus.. Insertion. The brachioradialis descends vertically and inserts above the styloid process of the radius
  2. Anatomy and Muscle Function. This course is designed to successfully teach you the muscles of the body. Learning on your own sounds like a good idea, but a subject as complex as kinesiology (the study of muscles) requires a guide to be effective. I will walk you through all of the details of the muscles we cover
  3. The rotator cuff (RTC) is a well-known group of muscles that are important in stabilizing the shoulder, basically no matter the activity. When it comes to keeping the arm bone centered in the socket, these are the guys for the job
  4. The rotator cuff provides this stability. The rotator cuff exists of four muscles: M. Subscapularis, M. Teres Minor, M. Supraspinatus and M. Infraspinatus. During shoulder abduction the rotator cuff muscles act together to stabilize the humeral head within the glenoid in a process known as concavity compression

Rotator Cuff Tear - TeachMeSurger

The scapula, also known as the shoulder blade, is a flat triangular bone located at the back of the trunk and resides over the posterior surface of ribs two to seven. The scapula, along with the clavicle and the manubrium of the sternum, make up the pectoral (shoulder) girdle which connects the upper limb of the appendicular skeleton to the axial skeleton the deltoid, teres major, and the four rotator cuff muscles (supraspinatus, infraspinatus, subscapularis and teres minor) teach me anatomy lower limb. 48 terms. amelia_alleyne5 PLUS. Medicine Y1- surface markings. 12 terms. amelia_alleyne5 PLUS. 4 - Cells of the Nervous System I. 15 terms The four muscles that constitute the rotator cuff are the supraspinatus, infraspinatus, subscapularis, and teres minor. The primary biomechanical role of the rotator cuff is stabilizing the glenohumeral joint by compressing the humeral head against the glenoid. The rotator cuff muscles thus act as dynamic stabilizers of the glenohumeral joint The rotator cuff plays a vital role in the stabilization of the GH joint which allows full shoulder range of motion. While the muscles that comprise the rotator cuff produce movements of internal rotation and external rotation, the main function of the rotator cuff is joint centration. Shoulder Anatomy and Biomechanics Made Simpl Rotator Cuff Tendinitis and Tears. When a muscle or tendon is overworked, it can become inflamed. The rotator cuff is frequently irritated in throwers, resulting in tendinitis. Early symptoms include pain that radiates from the front of the shoulder to the side of the arm. Pain may be present during throwing, other activities, and at rest

The rotator cuff is a group of four muscles and tendons that help stabilize the shoulder. They also aid in movement. Every time you move your shoulder, you are using your rotator cuff to stabilize. 4 rotator cuff muscles: The rotator cuff muscles make up the main strength for the stability of the shoulder joint. There are four rotator cuff muscles, that work as a group to hold the large head of the humerus in the shallow glenoid cavity

Rotator Cuff (Anatomy): Illustration, Common Problem

Muscles in the upper arm region include the supraspinatus, infraspinatus, teres minor, and subscapularis (together known as the rotator cuff). The most common injury to this group of muscles as a whole is a rotator cuff tear Enter the rotator cuff, a group of muscles and their tendons that literally create a continuous cuff around the shoulder joint, to help keep the humeral head in the shoulder socket. Together, the four muscles on the front, back, and top of the joint negotiate the position of the head of the arm bone in the shoulder socket Adhesive capsulitis (frozen shoulder) is a condition in which the glenohumeral joint capsule becomes contracted and adherent to the humeral head. This can result in shoulder pain and a reduced range of movement in the shoulder.. It affects approximately 3% of the population, it is more common in women, and peak onset is between 40-70yrs old.Those who have previously been affected by adhesive. The rotator cuff tendons are key to the healthy functioning of the shoulder. They are subject to a lot of wear and tear, or degeneration, as we use our arms. Tearing of the rotator cuff tendons is an especially painful injury. A torn rotator cuff creates a very weak shoulder. Most of the time patients with torn rotator cuffs are in late middle age

Muscles of the Shoulder Region - TeachMeAnatom

Peat M. (1986). Functional anatomy of the shoulder complex. Physical therapy, 66 (12), 1855-1865. Rodosky, M. W., Harner, C. D., & Fu, F. H. (1994). The role of the long head of the biceps muscle and superior glenoid labrum in anterior stability of the shoulder. The American journal of sports medicine, 22 (1), 121-130. Andrea Ortiz - Rotator Cuff, Labrum and Muscles Increasing Mobility of. The suprascapular nerve is a peripheral nerve of the shoulder and arm. It arises from the upper portion of the brachial plexus, which is a network of nerves that stretches across your check from your neck down to your armpit. The suprascapular nerve's roots emerge from the fifth and sixth cervical vertebrae (C5 and C6) in your neck The rotator cuff is in charge of dynamic stabilization of your shoulder (glenohumeral) joint. All of which brings me to my point: Yes, the infraspinatus and teres minor externally rotate your shoulder. Side-lying external rotations are great for strengthening these muscles. Yes, the supraspinatus abducts your shoulder The number of rotator cuff injuries reported in the US is increasing, as are the number of surgical interventions for such injuries. These injuries can be debilitating and interfere with work and recreation. Healing can take a long time, and surgery is often required. These types of injuries take an enormous toll on physical and mental well-being Frozen shoulder (also called adhesive capsulitis) is a common disorder that causes pain, stiffness, and loss of normal range of motion in the shoulder. It is caused by an injury or inflammation, which limits movement and causes the tissue around the joint to thicken and contract. Physical therapy will aim to restore flexibility to the joint capsule, then to strengthen it

Anatomy of the Human Shoulder Join

Clinical Relevant Anatomy [edit | edit source]. The supraspinatus muscle is of the greatest practical importance in the rotator cuff, it derives its innervation from the suprascapular nerve and stabilizes the shoulder, externally rotates and helps abduct the arm, by initiating the abduction of the humerus on the scapula. Any friction between the tendon and the acromion is normally reduced by. Bone Anatomy of the Shoulder. The rotator cuff physically holds these two components together. It consists of the confluence of the tendons of 4 muscles, which form a covering around the head of the humerus. The rotator cuff then attaches the humerus to the scapula and helps lift and rotate the arm

Calcific tendonitis occurs in the tendons (tendons attach muscles to bones) of the rotator cuff. The rotator cuff is actually made up of several tendons that connect the muscles around your shoulder to the humerus (the larger bone of the upper arm). Calcium deposits usually form on the tendon in the rotator cuff called the supraspinatus tendon Rotator cuff tears are common injuries caused by damage to the muscles or tendons that stabilize your shoulder joint. They can be diagnosed by using a number of physical tests and imaging techniques May 10, 2015 - Shoulder muscles and chest - human anatomy diagram. Pinterest. Today. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures. Log in. Sign up. Explore. Education. Subjects. Science. Rotator Cuff Muscles And Tendons. The rotator cuff muscles start on the scapula and attach to the humerus to move the shoulder. The supraspinatus, infraspinatus, teres major, and teres minor make up the rotator cuff. The deltoid is another important shoulder muscle. Tendinitis or tears in the rotator cuff tendons may lead to shoulder pain

Responsible for the movement of our ever-important hands, the shoulder is an extremely important part of the body when it comes to getting done what it is we want to get done. What can you tell us about how these joints work? Find out in this Anatomy of the Shoulder Quiz The rotator cuff, deltoids, pectoral muscles, and scapular stabilizers maintain strong, stable shoulders while the triceps lock out the elbows and keep your hands flat on the ground. Teach Me Anatomy: Muscles of the Lower Limb. Teach Me Anatomy: Muscles of the Upper Limb. Journal Of Strength And Conditioning Research: Integration Core. Rotor Cuff / Rotator Cuff. The University of Cambridge teach Rotator Cuff as the correct terminology, so perhaps not a layman's term. —Preceding unsigned comment added by 20:51, 12 November 2010 (UTC) Description of position of upper arm and forearm so unclea Feb 9, 2016 - muscles-of-the-upper-arm-and-shoulder-blade-anatomy-kenhub-13-638.jpg (638×359 The rotator cuff (RTC) is a well-known group of muscles that are important in stabilizing the shoulder, basically no matter the activity. When it comes to keeping the arm bone centered in the socket, these are the guys for the job. The larger the weight or force that an arm lifts, the more important the [

Video: The anatomy of the shoulde

* The rotator cuff muscles can be easily remembered using the acronym SITS Describe Subacromial bursa. Is the largest bursa in the body. It is located inferior to the acromion arch and above the tendon of supraspinatus and greater tubercle of humerus. It is continuous with the subdeltoid bursa present beneath the deltoid muscle SUMMARY VIDEO - 9. Axillary Fossa, Trianglar & quadrangular axillary spaces 4:32. SUMMARY VIDEO - 10. Sectional Anatomy of the Arm 7:14. SUMMARY VIDEO - 11. Sectional Anatomy of the forearm 00:9:57. SUMMARY VIDEO - 12. Topography of volar and dorsal wrist. Carpal tunnel 00:7:07 Brachial plexus. Dr Maxime St-Amant and Dr Henry Knipe et al. The brachial plexus is a complex neural network formed by lower cervical and upper thoracic ventral nerve roots which supplies motor and sensory innervation to the upper limb and pectoral girdle. It is located in the neck extending into the axilla posterior to the clavicle Anatomy of a Shoulder Mount. July 17th, 2021. Now just a quick lil disclaimer before I get started on the juicy anatomy goodness; the purpose of this blog is not to teach you how to shoulder mount, but to break down the mechanics of the movement to help you achieve it quicker and with great technique. The muscles we use are still the. The rotator cuff muscles are discussed in more detail in the rotator cuff muscles section. In the following sections on Rotator Cuff Anatomy I explain in a little more detail what the Rotator Cuff does, how it does this and some of the reasons why things can go wrong

This is where the ever-important group of muscles called the rotator cuff (RTC) come in to play. They are aptly termed the dynamic stabilizers of the glenohumeral joint (ball-and-socket). [2] However, the shoulder is actually comprised of three other joints that work synergistically with the ball-and-socket rotator cuff muscles the Supraspinatus, Infraspinatus, Teres minor, and Subscapularis are the SITS muscle group). There is a wealth of material that you can use as a reference to help you prepare for the laboratory, as well as study for the course. These materials are visually stimulating and will, if used, enhance your lab preparation, alon Rotator Cuff The rotator cuff tendons are a group of four tendons that connect the deepest layer of muscles to the humerus. They are the tendons of the rotator cuff muscles. These are (from front to back): subscapularis; supraspinatus; infraspinatus; teres minor; The supraspinatus is the most commonly affected tendon, both by overuse and trauma. A strong and efficient rotator cuff leads to improved stability of your shoulder girdle. This decreases load transfer to your wrists in poses where you bear weight on the hands (like arm balances, Dog Pose and Chaturanga). Conversely, if your core is weak, or you don't properly engage it in these types of poses, your cuff is less efficient. Many times, shoulder pain is accompanied by loss of shoulder range of motion and decreased rotator cuff strength. Your physical therapist can teach you various exercises to improve your rotator cuff strength and shoulder stability.. Kinesiology tape may be used to help facilitate your rotator cuff and shoulder deltoid muscle. It can augment your physical therapy exercises to ensure that you.

Infraspinatus: Origin, insertion, innervation, function

Effectively, the pec and lats want to pull the ball forward on the socket as the arm goes through gross movements, and the rotator cuff works hard to prevent this gliding at the joint level. Dominance of pec major over the rotator cuff muscles (namely subscapularis) will play a role in an athlete presenting with anterior humeral glide Training your rotator cuff muscles can help you avoid pain, prevent future injuries, and fix muscular imbalances. It's not uncommon for a trainee to add 20+ pounds to their bench press simply by strengthening the rotator cuff muscles. Never perform a rotator cuff routine prior to bench pressing or overhead pressing movements Strengthening the rotator cuff muscles is important to maintain normal shoulder function. A few meetings with a physical therapist can help teach you exercises to help alleviate and prevent a recurrence of your shoulder pain. Anatomy and Pathophysiology The rotator cuff is a group of four muscles that surround the humeral head (ball of. A rotator cuff impingement is a type of injury that causes shoulder pain. It affects the muscles and tendons between your arm bone and the top of your shoulder. You use this group of muscles and.

The four rotator cuff muscles are all anchored to the shoulder blade, and the tendons extend out to wrap around or create a cuff around the ball or humeral head of the shoulder joint. The rotator cuff muscles and tendons allow for lifting and rotation of the shoulder The blood supply of the shoulder muscles, ligaments and joint capsule was investigated by injection of silicone rubber into the arteria subclavia of postmortem cases. We show that the a. suprascapularis forms important anatomoses with other arteries in the region and is of greater importance for the blood supply of the rotator cuff as hitherto. Rotator Cuff. Tendons attach muscles to bones. Muscles move the bones by pulling on the tendons. The rotator cuff helps raise and rotate the arm. As the arm is raised, the rotator cuff also keeps the humerus tightly in the socket of the scapula, the glenoid. The upper part of the scapula that makes up the roof of the shoulder is called the. The rotator cuff consists of four muscles: supraspinatus, infraspinatus, subscapularis, and teres minor. Each of these muscles has its origin on the scapula and inserts around the head of the humerus. The tendons of these muscles surround and support the humerus while the contraction of the muscles rotates, adducts, or abducts the humerus.

Deep Upper Back, Anterior Shoulder, Chest, Upper Arm

Rotator Cuff Tears: Symptoms, Repair & Treatmen

We have to teach the rotator cuff and shoulder blade muscles to work together again. And many times without meaning to, people will use their neck muscles to compensate for the rotator cuff. Sometimes during exercises they found on YouTube or Google. This will usually lead to more shoulder pain Rotator cuff: The tendons of small muscles namely subscapularis, supraspinatus, Infraspinatus and teres minor on their way to insertion on humerus flatten and blend with each other and with the fibrous capsule of shoulder joint. The tone of these muscles support and strengthen the shoulder joint from the front, above and from the behind A rotator cuff repair is a surgery to restore the muscle tendon attachment to the humeral head (the ball of the ball and socket shoulder joint). It is most often done today through an arthroscopic technique - small incisions around the shoulder. The operation is now a same-day procedure with patients going home without hospital stays overnight Three important spaces of the shoulder that are bordered by the triceps include. quadrangular space. triangular space. triangular interval. Quadrangular Space. Borders. medial: long head of triceps. lateral: humeral shaft. superior: teres minor

The GH joint is stabilized by strong ligaments and muscles. The main groups of muscles that acts to stabilize the GH joint are the rotator cuff muscles. See Shoulder Structure, Function for more information about shoulder anatomy. Causes for Shoulder Joint Replacemen The rotator cuff is a group of muscles and tendons surrounding the shoulder joint. Mazzocca noticed many patients who had surgery to repair rotator cuff tears did not heal as well as they should. What really motivates us is seeing patients in the office, and how we can improve their care — Gus Mazzocc To understand how rotator cuff tears affect a person, it helps to understand the anatomy of this area. The rotator cuff is not a single muscle, but a group of muscles and tendons that work in harmony to provide mobility and stability to the shoulders Impingement Syndrome the most common shoulder injury in High-Intensity Workouts. It causes sharp pain in the shoulder with activity. Impingement causes repetitive micro damage to the rotator cuff. The rotator cuff is a deep set of muscles around the shoulder that help to coordinate motion. Impingement syndrome is most often caused by repetitive. The rotator cuff muscles as well as other larger muscles are strengthened to compensate for the torn labrum. While the muscles can help immensely with reducing instability, they cannot always entirely replace the labrum. Teach Me Anatomy - The Shoulder Joint. PMC - Anterior Shoulder Dislocation. injury joints shoulder. 2019 Spring.

Subacromial Impingement Syndrome - Diagnosis - Management

Make sure this fits by entering your model number.; ANATOMICAL LEFT ARM MODEL: The MonMed | Stationary Muscular Arm Model is a detailed, 28 x 4.5 x 7.5 inch (71.1cm x 11.4cm x 19.1cm) life-size left arm anatomy skeleton model (27.5 x 11.75 x 11.5 inch / 69.9cm x 29.8cm x 29.2cm overall) that shows anatomically accurate features of the human left arm muscles; Sections of arm. arises 5-8 cm distal to lateral epicondyle. passes between two heads of pronator teres. runs along the volar surface of the FDP. courses distally along the interosseous membrane. terminates in PQ near wrist joint. Motor Innervation. Motor. deep forearm muscles. flexor digitorum profundus - radial half

Shoulder Muscles - TeachPE

The rotator cuff attaches the humerus to the shoulder blade and helps to lift and rotate your arm. There is a lubricating sac called a bursa between the rotator cuff and the bone on top of your shoulder (acromion). The bursa allows the rotator cuff tendons to glide freely when you move your arm. When the rotator cuff tendons are injured or. The rotator cuff is a series of 4 muscles in the shoulder that form a cuff of tissue around the humerus bone in the shoulder joint. These muscles provide rotational strength to the shoulder. Tears in the tendons of these muscles are called rotator cuff tears. The most commonly affected muscle is the supraspinatus The real trick is figuring out you have a rotator cuff tear sooner rather than later. I had one client, who had been a client for years, who came to me within two days of injuring her shoulder. I did the Spontaneous Muscle Release Technique workup for the shoulder and axilla (sorry, trying to get my key words in for the damn internet) Rotator Cuff Muscles And Tendons Choose board. Save. Saved from muscleseek.com. Forearm Muscles - Structure, Injuries, Veins & Exercise. May 2021. diagram of forearm muscles. Saved by tyakiso k. 21. Anatomy Organs Human Body Anatomy Human Anatomy And Physiology Forearm Muscle Anatomy Forearm Muscles Muscle Diagram Body Diagram Interactive.

Shoulder Anatomy: Girdle, Ligaments, Bones, Humerus, Clavica

The brachial plexus is a network of intertwined nerves that control movement and sensation in the arm and hand. Brachial plexus injuries involve damage to these nerves, and may cause loss of feeling and/or loss of movement in the shoulder, arm, or hand The teres minor is one of those enigmatic rotator cuff muscles. The rotator cuff can be the root of all evil for some people, so this month is dedicated to learning about this troublesome structure and how to keep it healthy. There are four muscles in the rotator cuff. They are the supraspinatus, infraspinatus, teres minor, and subscapularis. Contents [ show] 1 Introduction. 2 Name the articular surfaces of shoulder joint. 3 Describe the capsule and ligaments of shoulder joint. 4 Name the factors that provide stability to the shoulder joint. 5 Name the movements possible at shoulder joint and the muscles responsible for them. 6 Describe briefly the abduction at shoulder joint

Questionmodule 3 case study In this module, you have learned about muscle structure and function. In this case assignment, you will explore the physiological processes involved in building and maintaining muscle tissue. Specifically, you will prepare a 2-3 page paper in which you: Describe normal anatomy/physiology of muscle contraction emphasizing the utilization of ATP in [ revisions rotator cuff muscles short notes slides t f, start studying quiz 15 pelvis and perineum anatomy dr j learn vocabulary terms and more with flashcards games and other study tools, the ischiocavernous muscles surround the crura in the root of the penis each muscle arises from the internal surface of the ischia

Shoulder Anatomy and Examination - TeachMe Orthopedic

The primary muscles of mastication (chewing food) are the temporalis, medial pterygoid, lateral pterygoid, and masseter muscles. The four main muscles of mastication attach to the rami of the mandible and function to move the jaw (mandible). The cardinal mandibular movements of mastication are elevation, depression, protrusion, retraction, and side to side movement courses laterally over the lateral head of the gastrocnemius. Sural nerve formation. at the distal third of the gastrocnemius, both sural cutaneous branches join to become the sural nerve. descends on the posterolateral aspect of leg. travels posterior to lateral malleolus and deep to fibularis tendon sheath. Terminal branches Muscles of Rotator (Compressor) Cuff Anatomy Acromion, Teres minor tendon, Infraspinatus tendon, Supraspinatus tendon, Acromioclavicular joint, Coracoacromial ligament, Subscapularis tendon, Trapezoid ligament Coracoid process, Conoid ligament, Coracoclavicular ligament, Superior view, Anterior view Posterior view, Infraspinatus muscle, Spine of scapula, Supraspinatus muscle, Clavicle.