Anatomy of Shoulder
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Questions and Answers

What type of joint is the sternoclavicular joint?

  • Saddle / Sellar joint (correct)
  • Hinge joint
  • Ball-and-socket joint
  • Pivot joint

What is a ginglymus joint commonly known as?

  • Hinge joint (correct)
  • Ball and socket joint
  • Pivot joint
  • Saddle joint

What type of joint is the 1st carpometacarpal joint (1st CMC)?

  • Hinge joint
  • Ball-and-socket joint
  • Saddle joint (correct)
  • Pivot joint

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What type of bone is the pisiform?

<p>Sesamoid bone (B)</p> Signup and view all the answers

What is the normal range of motion (ROM) for the shoulder flexion?

<p>0 to 180 degrees (B)</p> Signup and view all the answers

What is the normal range of motion (ROM) for elbow flexion?

<p>0 to 150 degrees (D)</p> Signup and view all the answers

What is the normal range of motion (ROM) for wrist extension?

<p>0° to 70° (B)</p> Signup and view all the answers

What is the normal range of motion (ROM) for wrist flexion?

<p>0 to 80 degrees (B)</p> Signup and view all the answers

What is the normal range of motion (ROM) for wrist radial deviation?

<p>0-20 degrees (B)</p> Signup and view all the answers

What is the normal range of motion (ROM) for wrist ulnar deviation?

<p>0 to 30 degrees (A)</p> Signup and view all the answers

Which muscles attach to the clavicle?

<p>All of the above (D)</p> Signup and view all the answers

What is the most mobile and unstable joint in the human body?

<p>Shoulder joint (B)</p> Signup and view all the answers

What is the most common part of the clavicle that fractures?

<p>Midshaft / middle 1/3 (C)</p> Signup and view all the answers

What is the resting position of the scapula?

<p>Slightly elevated and neutral (C)</p> Signup and view all the answers

At which vertebral level does the scapula typically align?

<p>T2 to T7 (B)</p> Signup and view all the answers

What is the vertebral level or landmark of the superior angle of the scapula?

<p>T2 (A)</p> Signup and view all the answers

What is the vertebral level or landmark of the inferior angle of the scapula?

<p>T7 (C)</p> Signup and view all the answers

What is the vertebral level or landmark of the spine of the scapula?

<p>T3 (B)</p> Signup and view all the answers

What is the orientation of the glenoid fossa?

<p>Anteriorly, superiorly, &amp; lateral (C)</p> Signup and view all the answers

What happens to the shoulder if the coracobrachialis is weak?

<p>difficulty of shoulder flexion and adduction (A)</p> Signup and view all the answers

What are the components of the medial border of the scapula?

<p>serratus anterior, levator scapulae, and rhomboids (A)</p> Signup and view all the answers

What is the orientation of the acromion process?

<p>Posteriorly, Laterally, and superiorly (D)</p> Signup and view all the answers

What is the most common cause of impingement in the acromion process?

<p>Hooked impingement (A)</p> Signup and view all the answers

What is the orientation of the humeral head in relation to the body?

<p>Medially, posteriorly, and superiorly (C)</p> Signup and view all the answers

What does the acronym SIT refer to in relation to shoulder muscles?

<p>Supraspinatus, Infraspinatus, Teres Minor (A)</p> Signup and view all the answers

What muscles insert at the greater tubercle of the humerus?

<p>Supraspinatus, Infraspinatus, Teres Minor (A)</p> Signup and view all the answers

Which muscle guards the shoulder joint anteriorly?

<p>Subscapularis (C)</p> Signup and view all the answers

What is another name for the bicipital groove?

<p>Intertubercular groove (A)</p> Signup and view all the answers

Which muscle inserts in the bicipital groove?

<p>pectoralis major, latissimus dorsi, and teres major (C)</p> Signup and view all the answers

What is the only attachment of the trunk and upper extremity?

<p>Sternoclavicular joint (A)</p> Signup and view all the answers

What type of joint is the sternoclavicular joint?

<p>Saddle joint (C)</p> Signup and view all the answers

What is posterior longitudinal rotation (PLR) of the shoulder?

<p>It completes the scapular upward rotation of the shoulder (A)</p> Signup and view all the answers

What is the degree range associated with the painful arc of acromioclavicular joint in shoulder movement?

<p>170° to 180° (A)</p> Signup and view all the answers

What is the capsular pattern of the glenohumeral joint?

<p>Limited external rotation, followed by abduction and internal rotation (B)</p> Signup and view all the answers

What is the degree of a painful arc in the glenohumeral joint?

<p>Pain during elevation between 80 and 120 degrees (B)</p> Signup and view all the answers

What is the most common cause of shoulder pain?

<p>Subacromial bursitis (A)</p> Signup and view all the answers

What is the most common cause of tendinitis in the shoulder?

<p>Overuse or repetitive motion (A)</p> Signup and view all the answers

What is the scapulohumeral rhythm?

<p>Scapular upward rotation and humeral elevation in a 2:1 ratio (A)</p> Signup and view all the answers

What role does the static shoulder stability capsule play in the shoulder joint stability?

<p>Allow 1-2 cm of distraction/ traction (B)</p> Signup and view all the answers

What are the main muscle pairs involved in shoulder force couples?

<p>Serratus anterior, lower trapezius, and upper trapezius (A)</p> Signup and view all the answers

What is the origin of the pectoralis major?

<p>Sternum, upper 6th of costal cartilage and clavicle (A)</p> Signup and view all the answers

What is the primary action of the pectoralis major muscle?

<p>Flexion, adduction, and internal rotation (C)</p> Signup and view all the answers

What is the origin of the serratus anterior muscle?

<p>First to eight ribs (A)</p> Signup and view all the answers

What is the primary action of the serratus anterior muscle?

<p>Scapular retraction, upward rotation, and shoulder elevation (C)</p> Signup and view all the answers

What is the origin of the latissimus dorsi muscle?

<p>Iliac crest, lower ribs, long thoracic spine, and inferior angle of scapula (A), Vertebral column and iliac crest (D)</p> Signup and view all the answers

Which nerve innervates the latissimus dorsi muscle?

<p>Thoracodorsal nerve (A)</p> Signup and view all the answers

After sitting at a computer station for 2-3 hours, an individual reports experiencing a sharp, localized pain in the left arm. When asked to show the location of the pain, the individual points to the area of the insertion of the deltoid. The pain disappears when the individual stands up and walks around briefly. Which of the following interventions is MOST likely to correct the problem?

<p>Adjust the chair height and distance from the desk (A)</p> Signup and view all the answers

The part of the scapula that articulates with the clavicle is known as the:

<p>Acromion process (B)</p> Signup and view all the answers

The following movements occur at the shoulder joint.

<p>Supination (C)</p> Signup and view all the answers

Which of the following IS NOT true about pectoralis major?

<p>inserts via a bilaminar tendon (C)</p> Signup and view all the answers

Rotator cuff muscles include:

<p>teres minor (B)</p> Signup and view all the answers

A positive Elevated Arm Stress Test indicates which condition?

<p>Thoracic outlet syndrome (C)</p> Signup and view all the answers

Muscle that is not attached to the humerus

<p>Pectoralis minor (C)</p> Signup and view all the answers

The conoid and trapezoid are ligaments that connect the:

<p>coracoids and clavicle (D)</p> Signup and view all the answers

The trapezius and serratus anterior:

<p>Act as synergists in upward rotation and antagonists in retraction and protraction (B)</p> Signup and view all the answers

In what movement of the scapula are the upper and lower trapezius muscles synergists:

<p>Upward rotation (B)</p> Signup and view all the answers

The glenohumeral joint is most unstable in this position:

<p>Flexed, abducted, externally rotated (A)</p> Signup and view all the answers

Responsible for shoulder retraction:

<p>Trapezius and rhomboids (A)</p> Signup and view all the answers

Triceps activity is enhanced by:

<p>Elbow extension combined with shoulder flexion (D)</p> Signup and view all the answers

The therapist examines a patient diagnosed with adhesive capsulitis. The examination reveals the patient has a significant capsular tightness in the anterior-inferior aspect. The most likely resultant range of motion limitation is

<p>abduction and external rotation (D)</p> Signup and view all the answers

Ligaments that that protects against lateral rotation with the arm adducted. Protects against inferior translation of the dependent arm and superior translation of a shoulder with a weak rotator cuff

<p>Coracohumeral ligament (A)</p> Signup and view all the answers

What is the main function to stabilize the scapula?

<p>serratus anterior (D)</p> Signup and view all the answers

Anterior dislocation of the glenohumeral joint is usually potentiated by weakness of this muscle:

<p>Subscapularis (C)</p> Signup and view all the answers

The teres minor as a rotator cuff muscle:

<p>Prevent shoulder subluxation when carrying a load in the hand while standing erect (D)</p> Signup and view all the answers

Rotator Cuff muscles are composed of the following:

<p>All of these (A)</p> Signup and view all the answers

In scapulohumeral rhythm, after 30 degrees of abduction, a 2:1 ratio occurs. For every 15 degrees of motion between 30 and 170 degrees of abduction, 10 degrees occur at the glenohumeral joint, and 5 degree occur at the scapulothoracic joint:

<p>Both statements are true (B)</p> Signup and view all the answers

The following statements are true of the shoulder, EXCEPT:

<p>Torque is maintained as the muscles shorten (A)</p> Signup and view all the answers

This muscle is the most powerful of the scapula, its paralysis results in “winged scapula”:

<p>Serratus anterior (C)</p> Signup and view all the answers

In a circling movement performed by the shoulder girdle, this joint is the pivot point:

<p>Sternoclavicular joint (C)</p> Signup and view all the answers

Flashcards

Capital of France (example flashcard)

Paris

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