T2 L4: Introduction to surgery of the shoulder (JP)
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Questions and Answers

Which muscle initiates abduction of the shoulder joint?

  • Teres Minor
  • Supraspinatus (correct)
  • Subscapularis
  • Infraspinatus

    • Which structure prevents superior dislocation of the shoulder joint?

  • Coracoacromial Arch (correct)
  • Glenohumeral Ligaments
  • Glenoid Labrum
  • Transverse Humeral Ligament

    • Which muscle is responsible for medial rotation of the shoulder joint?

  • Subscapularis (correct)
  • Supraspinatus
  • Infraspinatus
  • Teres Major

    • Which tendon passes through the bicipital groove of the humerus?

    <p>Long Head of Biceps</p> Signup and view all the answers

    Which muscle forms a cuff around the shoulder joint?

    <p>Rotator Cuff Muscles</p> Signup and view all the answers

    Which nerve supplies the supraspinatus and infraspinatus muscles?

    <p>Suprascapular Nerve</p> Signup and view all the answers

    Which artery supplies the shoulder region?

    <p>Axillary Artery</p> Signup and view all the answers

    Which nerve supplies the deltoid and teres minor muscles?

    <p>Axillary Nerve</p> Signup and view all the answers

    Which nerve innervates the cutaneous areas of the arm and forearm?

    <p>Medial Cutaneous Nerve of the Arm and Forearm</p> Signup and view all the answers

    Which muscle is most commonly injured in rotator cuff injuries?

    <p>Supraspinatus</p> Signup and view all the answers

    Which bone is part of the skeletal component of the shoulder region?

    <p>Clavicle</p> Signup and view all the answers

    Which joint is present in the shoulder region?

    <p>Glenohumeral joint</p> Signup and view all the answers

    What is the main function of the pectoral girdle?

    <p>Anchor the muscles in the shoulder region</p> Signup and view all the answers

    Which anatomical structures are responsible for stabilizing the shoulder joint?

    <p>Glenoid fossa and humerus</p> Signup and view all the answers

    What is the function of the muscles in the shoulder region?

    <p>Allow movement of the shoulder joint</p> Signup and view all the answers

    What is the axilla?

    <p>The region where the brachial plexus branches</p> Signup and view all the answers

    Which nerves are present in the shoulder region?

    <p>Suprascapular nerve and long thoracic nerve</p> Signup and view all the answers

    What are the cords and terminal branches of the brachial plexus?

    <p>Medial, lateral, and posterior cords</p> Signup and view all the answers

    Which bone is NOT part of the pectoral girdle?

    <p>Humerus</p> Signup and view all the answers

    What is the function of the acromion in the shoulder region?

    <p>Facilitate movement of the shoulder joint</p> Signup and view all the answers

    Which ligaments stabilize/support the shoulder region?

    <p>Coracoclavicular, Acromioclavicular, Coracoacromial, Glenohumeral</p> Signup and view all the answers

    Which joint is highly mobile and considered a ball and socket joint?

    <p>Glenohumeral Joint</p> Signup and view all the answers

    What is the main action of the middle fibers of the Deltoid muscle?

    <p>Abduction of the Glenohumeral Joint</p> Signup and view all the answers

    What muscles perform adduction of the Glenohumeral Joint?

    <p>Latissimus Dorsi and Pectoralis Major</p> Signup and view all the answers

    What is the main action of the Long Head of the Biceps muscle?

    <p>Flexion of the Glenohumeral Joint</p> Signup and view all the answers

    What nerve supplies the Musculoskeletal nerve of the Coracobrachialis muscle?

    <p>Musculocutaneous Nerve</p> Signup and view all the answers

    What structure increases the stability of the Glenohumeral Joint?

    <p>Deepening of Glenoid Fossa by Glenoid Labrum</p> Signup and view all the answers

    What is the most frequently dislocated joint in the body?

    <p>Glenohumeral Joint</p> Signup and view all the answers

    What factors increase the stability of the Shoulder Joint?

    <p>Coracoacromial Arch, Glenohumeral Ligaments, Deepening of Glenoid Fossa by Glenoid Labrum, Long Heads of Biceps and Triceps</p> Signup and view all the answers

    What is the main action of the Lateral Head of the Triceps muscle?

    <p>Extension of the Glenohumeral Joint</p> Signup and view all the answers

    Which bones make up the pectoral girdle in the shoulder region?

    <p>Clavicle and scapula</p> Signup and view all the answers

    What is the main function of the acromion process in the shoulder region?

    <p>To protect the neurovascular structures in the shoulder region</p> Signup and view all the answers

    Which anatomical structures are described as stabilizing the shoulder joint?

    <p>Ligaments of the shoulder region</p> Signup and view all the answers

    Which structures are present in the shoulder region?

    <p>Arteries, veins, and nerves</p> Signup and view all the answers

    Which nerve supplies the muscles responsible for rotating the scapula laterally?

    <p>Axillary nerve</p> Signup and view all the answers

    Which muscle is responsible for flexion of the glenohumeral joint?

    <p>Biceps brachii</p> Signup and view all the answers

    Which muscle is NOT involved in abduction of the glenohumeral joint?

    <p>Pectoralis major</p> Signup and view all the answers

    Which muscle is responsible for medial rotation of the shoulder joint?

    <p>Subscapularis</p> Signup and view all the answers

    What is the main action of the biceps muscle?

    <p>Flexion of the elbow joint</p> Signup and view all the answers

    Which nerve supplies the triceps muscle?

    <p>Radial nerve</p> Signup and view all the answers

    Which muscle is responsible for extension of the shoulder joint?

    <p>Triceps</p> Signup and view all the answers

    What is the main function of the rotator cuff muscles?

    <p>Stabilization of the shoulder joint</p> Signup and view all the answers

    What is the main function of the coracoid acromion ligament?

    <p>To provide support to the head of the humerus</p> Signup and view all the answers

    Which ligament connects the coracoid process to the clavicle?

    <p>Coracoclavicular ligament</p> Signup and view all the answers

    What is the main function of the glenohumeral ligaments?

    <p>To prevent superior dislocation of the shoulder joint</p> Signup and view all the answers

    What is the main function of the acromion in the shoulder region?

    <p>To stabilize the entire shoulder complex</p> Signup and view all the answers

    What is the main action of the middle fibers of the Deltoid muscle?

    <p>Shoulder abduction</p> Signup and view all the answers

    Which muscle is responsible for medial rotation of the shoulder joint?

    <p>Biceps muscle</p> Signup and view all the answers

    What is the function of the acromion in the shoulder region?

    <p>To provide attachment for muscles</p> Signup and view all the answers

    Which joint is highly mobile and considered a ball and socket joint?

    <p>Glenohumeral joint</p> Signup and view all the answers

    Which ligament forms an arch from an anterior view in the shoulder joint?

    <p>Collar core chromium ligament</p> Signup and view all the answers

    Which structure helps to deepen the shallow glenoid fossa in the shoulder joint?

    <p>Glenoid Labrum</p> Signup and view all the answers

    What is the function of the rotator cuff muscles in the shoulder joint?

    <p>To stabilize the glenohumeral joint</p> Signup and view all the answers

    What is the role of the long head of the biceps muscle in the shoulder joint?

    <p>To hold the biceps tendon in place</p> Signup and view all the answers

    What is the main function of the rotator cuff tendons?

    <p>To stabilize the joint</p> Signup and view all the answers

    Which side of the joint is the most of the rotator cuff located?

    <p>Anterior side</p> Signup and view all the answers

    What is the name of the tendon located just above the Pilaris tendon?

    <p>Super Spinoza's impersonators</p> Signup and view all the answers

    What is the main function of the rotator cuff tendons besides stabilizing the joint?

    <p>To produce movement at the joint</p> Signup and view all the answers

    Which side of the joint is the posterior side?

    <p>Posterior side</p> Signup and view all the answers

    What is the name of the rotator cuff tendon located at the front of the joint?

    <p>Pilaris</p> Signup and view all the answers

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