flashcards_nervoussytem1

Question 1

__ pairs of thoracic nerves

Answer 1

12

Question 2

___ dermatomes

Answer 2

30

Question 3

___ pairs of spinal nerves

Answer 3

31

Question 4

__ pairs of sacral nerves

Answer 4

5

Question 5

__ pairs of cervical nerves

Answer 5

8

Question 6

order of spinal nerve number for each segment

Answer 6

8 12 5 5 1

Question 7

dorsal rami supply the motor and sensory fibers to

Answer 7

bones, muscles, and skin of posterior neck and trunk

Question 8

cell bodies are located either in the

Answer 8

brain, spinal cord, peripheral ganglion

Question 9

____ plays no direct role in transmission of sensory input

Answer 9

cell body

Question 10

what cervical spinal nerve has no cutaneous terminus or demratome

Answer 10

cervical spinal nerve or C1

Question 11

____ receptors are located on the skin

Answer 11

cutaneous

Question 12

defined area of skin that is innervated by cutaneous branches of both ___ and ___ of a specific spinal nerve is called a dermatome

Answer 12

dorsal and ventral rami

Question 13

cell bodies of sensory neurons are found in the

Answer 13

dorsal root ganglia

Question 14

Herpes zoster is an inflammation of one or more

Answer 14

dorsal root ganglia

Question 15

functional component of peripheral nervous ssytem are ___ and ___ fibers

Answer 15

efferent and afferent

Question 16

cutaneous receptors are also called ___ recetors becauser they respond to stimuli on the external surface of the body

Answer 16

exteroreceptors

Question 17

cell bodies of motor neurons are located in the

Answer 17

gray matter of spinal cord

Question 18

dorsal root ganglia are located outside of the spinal cord in the

Answer 18

intervertebral foramina

Question 19

ventral root consits of axons of

Answer 19

motor nruton

Question 20

bundles of axons and processes of sensory neurons are called

Answer 20

nerves

Question 21

two structural components of the nervous system are

Answer 21

nerves and ganglia

Question 22

ventral rami supply thebones muscles skin

Answer 22

of the anterior thoracis and abdominal walls and extremieis

Question 23

ventral rami of cervical, thoracic, sacral form large composite network that intermingle called

Answer 23

plexi where named nerves emerge to supply skeletal msucualture of limbs

Question 24

spinal nerves divide into two major branches called

Answer 24

rami

Question 25

cell bodies of motor neurons in each spinal nerve are located in the gray matter at ___ interval

Answer 25

regular

Question 26

a sensory neuron has a ___ process

Answer 26

single

Question 27

spinal nerves are distributed to the

Answer 27

skeletal muscle and to the skin

Question 28

visceral nerves are associated with

Answer 28

smooth muscle, cardiac muscle, glands

Question 29

spinal nerves are ____ nerves

Answer 29

somatic

Question 30

two destination for nerves in pns

Answer 30

somatic to skeletal muscle or skin and visceral to smooth muscle of organs, cardiac muscle and glands

Question 31

no ___ take place in the dorsal root ganglia

Answer 31

synapses

Question 32

ventral rami of the __ region are symmetrical

Answer 32

thoracic

Question 33

spinal nerves are all made up of three components

Answer 33

ventral root, dorsal root, dorsal root ganglia

Question 34

spinal cord passes through the ____ canal

Answer 34

vertebral