Shoulder anatomy

Select the two components of the acromioclavicular joint

• Acromion

• Humeral head

• Glenoid fossa

• Clavicle

Select the two components of the glenohumeral joint

• Acromion

• Humeral head

• Glenoid fossa

• Clavicle

Which joint is a ball and socket joint

• acromioclavicular

• glenohumeral

• sternoclavicular

• scapulothoracic

Which joint is a ball and synovial saddle joint

• acromioclavicular

• glenohumeral

• sternoclavicular

• scapulothoracic

What does the sternoclavicular joint connect

• Clavicle and acromion

• Manubrium and clavicle

• Acromion and coracoid

• Glenoid fossa and humeral head

What is NOT a muscle or tendon of the rotator cuff

• supraspinatus

• infraspinatus

• tres major

• subscapularis

• tres minor

What is the purpose of the rotator cuff

• Stabilize the acromioclavicular joint

• Resist dislocation of the shoulder

• Flexion and adduction of the arm

• Stabilize the glenohumeral joint

Match the tendons of the rotator cuff with their function

• Supraspinatus: Lateral rotation of the arm

  Infraspinatus: Adduction and medial rotation of the arm

  Teres minor: Lateral rotation of the arm

  Subscapularis: Initiation of arm abduction

• Supraspinatus: Initiation of arm abduction

  Infraspinatus: Lateral rotation of the arm

  Teres minor: Lateral rotation of the arm

  Subscapularis: Adduction and medial rotation of the arm

• Supraspinatus: Adduction and medial rotation of the arm

  Infraspinatus: Lateral rotation of the arm

  Teres minor: Initiation of arm abduction

  Subscapularis: Lateral rotation of the arm

• Supraspinatus: Lateral rotation of the arm

  Infraspinatus: initiation of arm abduction

  Teres minor: Lateral rotation of the arm

  Subscapularis: Adduction and medial rotation of the arm

Which correctly describes the neural innervation of the rotator cuff

• Supraspinatus: suprascapular nerve

  Infraspinatus: suprascapular nerve

  Teres minor: suprascapular nerve

  Subscapularis: axillary nerve

• Supraspinatus: axillary nerve

  Infraspinatus: suprascapular nerve

  Teres minor: suprascapular nerve

  Subscapularis: suprascapular nerve

• Supraspinatus: suprascapular nerve

  Infraspinatus: suprascapular nerve

  Teres minor: axillary nerve

  Subscapularis: suprascapular nerve

Select ALL the muscles that resist dislocation of the shoulder

• Pectoralis major

• Biceps brachii

• Trapezius

• Triceps brachii