Kaplan 3.5.11: Peripheral Ns

Front 1

lateral pectoral n. is from cord levels ___
and innervates ___

Back 1

C5-C7
pectoralis major

Front 2

medial pectoral n. is from cord levels ___
and innervates ___

Back 2

C8-T1
pectoralis major and minor

Front 3

musculocutaneous n. is from cord levels ___
and innervates ___ (3)

Back 3

C5-C7
biceps
coracobrachialis
lateral cutaneous of forearm

Front 4

axillary n. is from cord levels ___
and innervates ___ (3)

Back 4

C5-C6
deltoid
teres minor
lateral cutaneous of arm

Front 5

thenar muscles are innervated by ___
hypothenar muscles are innervated by ___

Back 5

median n.
ulnar n.

Front 6

ulnar n. is from SC levels ___
it innervates ___

Back 6

C8-T1
hypothenar muscles
lumbricals 4 and 5
interossei

Front 7

3 thenar muscles

Back 7

abductor pollicis
flexor pollicis brevis
opponens pollicis

Front 8

3 hypothenar muscles

Back 8

abductor digiti minimi
flexor digiti minimi brevis
opponens digiti minimi

Front 9

median n. lesion causes weakness of ___ in hand
because of ___ muscle

Back 9

thumb opposition
opponens pollicis

Front 10

ulnar n. lesion causes weakness of ___ in hand
because of ___ muscle

Back 10

finger spreading/adduction
interossei

Front 11

radial n. is from ___ cord levels
it innervates ___ (2)

Back 11

C5-C8
forearm extensors
wrist extensors

Front 12

median n. is from ___ cord levels
it innervates ___ (2)

Back 12

C6-T1
forearm flexors
thenar muscles

Front 13

forearm pronation is by ___ (2) muscles innervated by ___ n.

Back 13

pronator teres
pronator quadratus
median

Front 14

forearm supination is by ___ (2) muscles innervated by ___ n.

Back 14

supinator
radial

Front 15

lumbar plexus is located inside ___ muscle
it receives fibers from ___ part of ___ cord levels

Back 15

psoas major
ventral
T12-L4

Front 16

2 nerves from lumbar plexus

Back 16

femoral
obturator

Front 17

cord levels in femoral n.

Back 17

L2-L4

Front 18

4 actions of femoral n.

Back 18

hip flexion
knee extension
sensation from anteromedial thigh
sensation from medial leg

Front 19

cord levels in obturator n.

Back 19

L2-L4

Front 20

2 actions of obturator n.

Back 20

thigh adduction
sensation from medial thigh

Front 21

sacral plexus receives fibers from ___ part of cord levels ___

Back 21

ventral
L4-S4

Front 22

all nerves from sacral plexus except for ___
innervate muscles originating in ___
and inserting on ___.
these include ___

Back 22

sciatic
ilium
femur
superior gluteal
inferior gluteal
n. to quadratus femoris

Front 23

sciatic nerve is from cord levels ___
it is composed of ___ and ___
___ branches of these innervate the hamstrings

Back 23

L4--S3
common peroneal n.
tibial n.
muscular

Front 24

2 superficial hamstring muscles, from medial to lateral

Back 24

semitendinosus
biceps femoris, long head

Front 25

2 deep hamstring muscles, form medial to lateral

Back 25

semimembranosus
biceps femoris, short head

Front 26

3 of the 4 hamstring muscles originate at ___
the exception is ___

Back 26

ischial tuberosity
short head of biceps femoris

Front 27

biceps femoris inserts at ___ aspect of ___

Back 27

lateral
fibular head

Front 28

2 branches of common peroneal n.

Back 28

deep peroneal n.
superficial peroneal n.

Front 29

3 compartments of leg

Back 29

anterior
lateral
posterior

Front 30

anterior compartment includes ___ (2)
it is innervated by ___ n.

Back 30

tibialis anterior
extensor digitorum longus
deep peroneal

Front 31

lateral compartment includes ___ (2)
these muscles do ___ (2)
it is innervated by ___ n.

Back 31

peroneus longus
peroneus brevis
plantar flexion
external rotation
superficial peroneal

Front 32

posterior compartment includes ___ (2)
it is innervated by ___ n.

Back 32

gastrocnemius
plantaris
tibial