Week 2 - Orientation to Axilla

Question 0

What muscles of the upper arm are lateral rotators?

Answer 0

Infraspinatus & teres minor

Question 1

What muscles are abductors of the arm?

Answer 1

Deltoid & supraspinatus

Question 2

What spinal cord segments is the medial nerve made up of?

Answer 2

C5, C6, C7, C8, T1

Question 3

What two structures are most likely to be injured by a midshaft fracture of the humerus?

Answer 3

Radial nerve and deep brachial artery

Question 4

What nerve is most frequently damaged by fracture of the humerus 1 inch proximal to the epicondyles?

Answer 4

Radial Nerve

Question 5

What muscle usually tears in rotator cuff injuries?

Answer 5

Supraspinatus muscle

Question 6

What movement of the upper extremity produces pain in rotator cuff injuries?

Answer 6

Abduction

Question 7

What innervates the supraspinatus and infraspinatus muscles?

Answer 7

Suprascapular nerve

Question 8

What muscle originates from the scapula and supinates the forearm?

Answer 8

Biceps brachii