2F Peripheral Nervous System (PNS)

outside

Periphery means along the _________

the brain and spinal cord

PNS includes all nervous tissue except

false

TRUE/FALSE Most of the PNS is protected by bone

12

how many pairs of cranial nerves

31

how many pairs of spinal nerves

spinal cord

spinal nerves originate from the

8

_______ pairs of cervical spinal nerves

12

_______ pairs of thoracic spinal nerves

5

_______ pairs of lumbar spinal nerves

5

_______ pairs of sacral spinal nerves

1

_______ pairs of coccygeal spinal nerves

ventral and dorsal rami

spinal nerves branch to form

back

dorsal rami will supply structures on the _________

front of the torso; appendages

ventral rami will supply structures on the _________________and the entire _______________

C1, C2, C3, C4

cervical plexus includes ventral rami C1, C2, C3, C4

muscles of the skin and neck

cervical plexus supplies

C3
C4
C5
diaphragm

phrenic nerve comes off of _____, _____, _____ and supplies the __________

C5-T1

Brachial plexus includes ventral rami

entire upper limb; trapezius; medial; shoulder

Brachial plexus supplies the __________ except for ___________ and the skin over the upper _________arm and parts of the ____________

16

how many nerves come off the brachial plexus

C5-C7

musculocutaneous ventral rami

lateral

musculocutaneous cord

anterior arm muscles

musculocutaneous supplies

lateral antebrachial cutaneous; skin of lateral forearm

musculocutaneous changes name to ____________________ which supplies ____________________

50%, 50%

musculocutaneous fibers _____% supply muscle, _______% supply skin

C5-T1

median nerve ventral rami

medial, lateral

median nerve cord

sensory and motor anterior forearm and some thenar hand

median nerve supplies

the carpal tunnel

median nerve is the only nerve to course through

C8-T1

ulnar nerve ventral rami

medial

ulnar nerve cord

sensory and motor for some anterior forearm, most of the hand muscles

ulnar nerve supplies

superficial, deep

ulnar nerve splits in the hand to __________ and _________ branch

medial epicondyle

ulnar nerve lies posterior to the ___________

C5-T1

radial nerve ventral rami

posterior

radial nerve cord

sensory and motor of muscles of posterior arm, forearm and skin of posterior upper limb

radial nerve supplies

posterior

radial nerve supplies nearly all __________ structures of the upper limb

L1- S4

Lumbosacral plexus ventral rami

abdomen, psoas major

lumbar plexus is located in the posterior wall of the ____________ within the ___________ muscle

L1-L4 (upper division)

lumbar plexus ventral rami

femoral, obturator

major nerves of lumbar plexus

L2-L4

femoral nerve ventral rami

anterior thigh

femoral nerve supplies the majority of the ___________

L2-L4

obturator nerve ventral rami

medial thigh

obturator nerve supplies the majority of the _____________

L4-S4

Sacral Plexus ventral rami

posterior femoral cutaneous, sciatic, superior gluteal, inferior gluteal, pudendal

Major nerves of sacral plexus

posterior femoral cutaneous nerve

largest cutaneous nerve in the body

L4-S3

sciatic nerve ventral rami

sciatic nerve

largest nerve in body

tibial nerve and common fibular nerve

what does the sciatic nerve branch to

posterior leg, foot

tibial nerve supplies the __________ and the majority of the ___________

deep and superficial fibular nerve

common fibular nerve branches to

anterior leg

deep fibular nerve supplies

lateral leg

superficial fibular nerve supplies

L4, L5, S1

superior gluteal nerve ventral rami

gluteus medius, gluteus minimus, tensor fasciae latae

superior gluteal nerve supplies

L5, S1, S2

inferior gluteal nerve ventral rami

gluteus maximus

inferior gluteal nerve supplies

S2, S3, S4

pudendal nerve ventral rami

genitalia

pudendal nerve supplies

cervical plexus

Identify structure #1

brachial plexus

Identify structure #2

musculocutaneous nerve

Identify structure #3

radial nerve

Identify structure #4

median nerve

Identify structure #5

ulnar nerve

Identify structure #6

lumbar plexus

Identify structure #7

obturator nerve

Identify structure #8

femoral nerve

Identify structure #9

saphenous nerve

Identify structure #10

cerebrum

Identify structure #11

brainstem

Identify structure #12

cerebellum

Identify structure #13

spinal cord

Identify structure #14

intercostal nerves

Identify structure #15

subcostal nerve

Identify structure #16

sacral plexus

Identify structure #17

pudendal nerve

Identify structure #18

sciatic nerve

Identify structure #19

common fibular(peroneal) nerve

Identify structure #20

tibial nerve

Identify structure #21

deep fibular (peroneal) nerve

Identify structure #22

superficial fibular (peroneal) nerve

Identify structure #23