Chapter 7 -Efferent somatic

Question 0

somatic = ________

Answer 0

voluntary

Question 1

Efferent somatic NS

Answer 1

consists of axons on motor neurons that originate in CNS and end on skeletal muscle

Question 2

autonomic

Answer 2

fibers that innervate cardiac, smooth muscle and glands

Question 3

somatic

Answer 3

fibers of motor neurons that supply skeletal muscles

Question 4

Somatic: uses _________ to connect CNS to effector

Answer 4

1 neuron

Question 5

Somatic: releases ________ at synapse

Answer 5

ACh

Question 6

somatic: ___________ only

Answer 6

excitatory

Question 7

somatic: one __________

Answer 7

effector

Question 8

motor neuron

Answer 8

nerve fiber that innervates skeletal muscle and cell body is in CNS (ventral horn of spinal cord)

Question 9

motor neurons: receives signals from

Answer 9

spinal cord - reflexes

brain - descending pathways from primary motor cortex

Question 10

motor neuron: signals can be _____ or _____

Answer 10

IPSP or EPSP

Question 11

if you hyperpolarized motor neuron, it _____ reach threshold

Answer 11

wont

Question 12

motor neuron: can only ________ AP at cell body

Answer 12

inhibit

Question 13

skeletal muscle contractions can be inhibited by ________

Answer 13

IPSP at the cell body

Question 14

if a drug blocks cholinergic receptors on postganglionic cell bodies, the drug would be a(n) ___________

Answer 14

nicotinic