17 Brachial Plexus (Nerve Branches)

Question 1

what are the 5 terminal branches of the brachial plexus?

Answer 1

musculocutaneous
axillary
radial
median
ulnar

Question 2

how many non-terminal branches arise from the brachial plexus?

Answer 2

11

Question 3

what are the 11 non-terminal branches of the brachial plexus?

Answer 3

long thoracic
dorsal scapular
suprascapular
nerve to the subclavius
lateral pectoral
thoracodorsal
upper subscapular
lower subscapular
medial pectoral
medial brachial cutaneous
medial antebrachial cutaneous

Question 4

which branches arise from the roots of the brachial plexus?

Answer 4

long thoracic (roots C5, C6, C7)
dorsal scapular (root C5)

Question 5

which branches arise from the upper trunk?

Answer 5

suprascapular

nerve to the subclavius

Question 6

which branches arise from the cords of the brachial plexus?

Answer 6

lateral cord: lateral pectoral

posterior cord: thoracodorsal, upper subscapular and lower subscapular

medial cord: medial pectoral, medial brachial cutaneous, medial antebrachial cutaneous

Question 7

which branches arise from the lateral cord?

Answer 7

lateral pectoral

Question 8

which branches arise from the posterior cord?

Answer 8

thoracodorsal, upper subscapular and lower subscapular

Question 9

which branches arise from the medial cord?

Answer 9

medial pectoral, medial brachial cutaneous, medial antebrachial cutaneous