Week 2 - Orientation to Axilla Flashcards

0
Q

What muscles of the upper arm are lateral rotators?

A

Infraspinatus & teres minor

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1
Q

What muscles are abductors of the arm?

A

Deltoid & supraspinatus

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2
Q

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

A

C5, C6, C7, C8, T1

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3
Q

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

A

Radial nerve and deep brachial artery

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4
Q

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

A

Radial Nerve

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5
Q

What muscle usually tears in rotator cuff injuries?

A

Supraspinatus muscle

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6
Q

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

A

Abduction

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7
Q

What innervates the supraspinatus and infraspinatus muscles?

A

Suprascapular nerve

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8
Q

What muscle originates from the scapula and supinates the forearm?

A

Biceps brachii

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