nerve plexus

Question 1

the four main plexuses are?

Answer 1

cervical
brachial
lumbar
sacral

Question 2

the brachial plexus include spinal nerves __ to __.

Answer 2

C5-T1

ventral rami

Question 3

what are the major nerves of the brachial plexus?

Answer 3

musculocutaneous
median
ulnar
axillary 
radial

Question 4

what are the sections of the brachial plexus? and how many in each? (Randy Travis Drinks Cold Beer)

Answer 4

Roots- 5
Trunks- 3
Divisions- 6
Cords- 3
Branches- 5

Question 5

the dorsal scapular nerve innervates ?

Answer 5

levator scapulae

rhomboid Major and minor

Question 6

the long thoracic nerve innervates what mm?

Answer 6

Serratus anterior

remember SA-LT, serratus anterior long thoracic

Question 7

the suprascapular nerve innervates what?

Answer 7

supraspinatus and infraspinatus

Question 8

the subclavius nerve innervates?

Answer 8

subclavius MM

Question 9

the lateral pectoral n inn?

Answer 9

pectoralis major and minor

Question 10

upper scapular n inn?

Answer 10

subscapularis

Question 11

the middle subscapular nerve aka thoracodorsal n inn?

Answer 11

latissumus dorsi

Question 12

lower subscapular n?

Answer 12

teres major

Question 13

medial pectoral n inn?

Answer 13

pectoralis major and minor

Question 14

what two nerves inn the pectoralis major and minor?

Answer 14

medial pectoral and lateral pectoral nerves

Question 15

the medial cutaneous or medial brachial cutaneous innervates?

Answer 15

sensory for front and medial skin of arm

Question 16

the medial cutaneous of foreman or medial antebrachial cutaneous n innervates?

Answer 16

sensory of medial skin of forearm

Question 17

the musculocutaneous n innervates?
(motor and sensory?)
what is significant about its path?

Answer 17

motor- anterior MM of arm (biceps, brachialis, coracobrachialis)

sensory- skin on lateral forearm

musculocutaneous runs though the coracobrachialis MM on route to arm/ forearm

Question 18

the median nerve inn? (motor and sensory)

significance about its path?

Answer 18

motor- anteior MM of forearm (flexors) and a few hand MM

sensory- thumb and digits 2,3, and half of 4

median nerve runs through the carpal tunnel in wrist!

Question 19

the ulnar nerve inn (motor and sensory)

Answer 19

motor- most of hand MM, 1/2 of flexor digitorium profundus and flexor carpi ulnairs

sensory- 1/2 of digit 4 and digit 5

Question 20

axillary nerve inn? (motor and sensory)

Answer 20

motor-deltoid and teres minor

sensory- skin on side of shoulder

Question 21

radial nerve inn? (motor and sensory)

Answer 21

motor- posterior (extensor) MM of arm (tricep) and forearm

sensory- skin on posterior arm, forearm, and posterior digits 1,2,3, and half of 4