Immersion Exam II: Upper Extremity

Question 1

C3 and C4

Answer 1

supply the region at the base of the neck, extending laterally over the shoulder

Question 2

C5

Answer 2

supplies the arm laterally

Question 3

C6

Answer 3

supplies the forearm laterally and the thumb

Question 4

C7

Answer 4

supplies the middle and ring finders (middle three fingers) and the middle of the posterior surface of the limb

Question 5

C8

Answer 5

supplies the little finger, the medial side of the hand, and the forearm

Question 6

T1

Answer 6

supplies the middle of the forearm to the axilla

Question 7

T2

Answer 7

supplies a small part of the arm and the skin of the axilla

Question 8

Fascial Layers

Answer 8

Outermost: pectoral fascia continuous with anterior abdominal wall fascia; surrounds pectoralis major muscle

Innermost:
Superior: deep cervical fascia surrounding the omohyoid muscle
Middle: clavipectoral fascia surrounding pectoralis minor
Inferior: axillary fascia

Costocoracoid membrane is between superior and middle
Suspensary ligament of axilla between middle and inferior