Exam 3 review

Question 1

Lateral cord is formed by the anterior divisions of what trunks?

Answer 1

superior and middle trunks

Question 2

Medial cord is formed by the anterior division of what trunk(s)?

Answer 2

inferior trunk

Question 3

Posterior cord is formed by what divisions?

Answer 3

posterior division of all three trunks

Question 4

Nerves formed from roots of brachial plexus

Answer 4

Dorsal scapular nerve

Long thoracic nerve

Question 5

Dorsal Scapular Nerve

Answer 5

C5 only
Levator scapula (w/ C3 & C4)
Rhomboid major
Rhomboid minor

Question 6

Long thoracic nerve

Answer 6

roots of C5, C6, and C7

Serratus Anterior

Question 7

Nerves branching off the superior trunk of the brachial plexus

Answer 7

Suprascapular nerve

Nerve to the subclavius

Question 8

Nerves branching off the lateral cord of the brachial plexus

Answer 8

Lateral pectoral nerve
Musculocutaneous nerve
terminal branch contributes to the Median nerve

Question 9

Nerves branching off the medial cord of the brachial plexus

Answer 9

Medial pectoral nerve
Medial cutaneous nerve of the arm
Medial cutaneous nerve of the forearm
Ulnar nerve
Median nerve

Question 10

Branches off the posterior cord of the brachial plexus

Answer 10

Superior subscapular nerve
Thoracodorsal nerve
Inferior subscapular nerve
Axillary Nerve
Radial nerve