Lecture Exam #2

Question 1

divisions of the Autonomic Nervous System

Answer 1

sympathetic, parasympathetic

Question 2

divisions of the motor nervous system

Answer 2

autonomic, somatic

Question 3

autonomic nervous system is under ____ control

Answer 3

involuntary

smooth muscle, heart, glands

Question 4

somatic nervous system is under ____ control

Answer 4

voluntary

skeletal muscle

Question 5

somatic nervous system includes ____ perceived or controlled processes

Answer 5

consciously

Question 6

divisions of the somatic nervous system

Answer 6

somatic sensory, somatic motor

Question 7

somatic sensory

Answer 7

detects signals from special senses

vision, hearing, equilibrium, smell, taste

Question 8

somatic motor

Answer 8

sends signals from CNS to skeletal muscles

Question 9

in the somatic motor system, voluntary movements are involved in the ____

Answer 9

cerebrum

Question 10

in the somatic motor system, reflexive movements are involved in the _____

Answer 10

brainstem and spinal cord

Question 11

the autonomic nervous system transmits signals from the CNS to….

Answer 11

heart, smooth muscle, glands

Question 12

order of ganglionic neurons

Answer 12

1. ) preganglionic autonomic motor neuron
2. ) ganglionic autonomic motor neuron
3. ) smooth muscle, heart, glands

Question 13

A single lower motor neuron extends from CNS to

Answer 13

skeletal muscle fibers

Question 14

what does the autonomic nervous system use in order to reach an effector?

Answer 14

a chain of two motor neurons

preganglionic & postganglionic

Question 15

the preganglionic neuron releases ____ from synaptic knob, to excite the second motor neuron

Answer 15

Acetylcholine (ACh)

Question 16

the postganglionic neuron releases ____ or _____ from synaptic knob to either _____ or _____ the effector

Answer 16

• ACh or norepinephrine

- excite or inhibit

Question 17

neuronal convergence

Answer 17

multiple preganglionic neurons synapsing on one ganglionic neuron

Question 18

neuronal divergence

Answer 18

branches of axon from one preganglionic neuron synapsing with numerous ganglionic neurons

Question 19

the autonomic nervous system controls which organs?

Answer 19

visceral

Question 20

what part of the brain controls both divisions of the autonomic nervous system?

Answer 20

hypothalamus

Question 21

the autonomic nervous system is regulated by?

Answer 21

parts of the brain and spinal cord

Question 22

fight or flight

Answer 22

sympathetic nervous system

Question 23

rest and digest

Answer 23

parasympathetic nervous system

Question 24

visceral reflexes are mediated by…?

Answer 24

brainstem nuclei

Question 25

ANS reflexes are governed by…?

Answer 25

spinal cord

Question 26

the ______ contains major ANS reflex centers

Answer 26

brainstem

Question 27

contains ANS reflex centers for defecation and urination

Answer 27

spinal cord

Question 28

short preganglionic axon, long postganglionic axon

Answer 28

sympathetic division

Question 29

long preganglionic axon, short postganglionic axon

Answer 29

parasympathetic division

Question 30

what do preganglionic cells stimulate in order to release epinephrine and norepinephrine into the blood?

Answer 30

adrenal medulla

Question 31

what two neurotransmitters does the autonomic nervous system use?

Answer 31

ACh and norepineprhine

Question 32

cells that release ACh

Answer 32

All ANS preganglionic neurons
All parasympathetic ganglionic neurons
Sympathetic ganglionic neurons innervating sweat glands and blood vessels in skeletal muscle