Peripheral NS Anatomy and Physiology Flashcards Preview

aNeuro Exam I- Lindsey's > Peripheral NS Anatomy and Physiology > Flashcards

Flashcards in Peripheral NS Anatomy and Physiology Deck (40):
1

Most of the clinically useful ANS drugs affect _____.

efferent neurons

2

____ connects the CNS to peripheral tissues.

A single neuron

3

____ connects the ANS to peripheral tissues.

A double-neuron connection

4

_____ neurons originate in the cranial nerve nuclei and sacral spinal cord.

Parasympathetic

5

Parasympathetic neurons originate in the ____ and ____.

cranial nerve nuclei and sacral spinal cord

6

____ neurons originate in the thoracic and lumbar spinal cord.

Sympathetic

7

Sympathetic neurons originate in the ____ and _____.

thoracic and lumbar spinal cord

8

_____ ganglia are located in the innervated organs.

Parasympathetic

9

Parasympathetic ganglia are located ______.

in the innervated organs

10

Sympathetic ganglia are located _____.

in 2 paravertebral chains along the spinal cord or in prevertebral ganglia in the abdomen

11

_____ ganglia are located in 2 paravertebral chains along the spinal cord or in prevertebral ganglia in the abdomen.

Sympathetic

12

_____ neurons are long.

Preganglionic parasympathetic and postganglionic sympathetic

13

Preganglionic parasympathetic neurons are ____.

long

14

Preganglionic sympathetic neurons are ____.

short

15

_____ neurons are short.

Preganglionic sympathetic and postganglionic parasympathetic

16

___ is released from cholinergic neurons.

ACh

17

ACh is released from _____ neurons.

cholinergic

18

____ is released from adrenergic neurons.

NE

19

NE is released from _____ neurons.

adrenergic

20

What are the 2 subtypes of cholinergic receptors?

nicotinic and muscarinic

21

What are the 2 subtypes of adrenergic receptors?

alpha and beta

22

Blood vessels receive _____ innervation ONLY.

sympathetic

23

The predominant control is by the ____ branch of the nervous system.

parasympathetic

24

What is the parasympathetic nervous system?

rest and digest
increased GI motility
emptying of bladder and rectum
pupil constriction
slowed HR and BP

25

Which nervous system branch?
rest and digest
increased GI motility
emptying of bladder and rectum
pupil constriction
slowed HR and BP

PNS

26

Which nervous system branch?
fight or flight
rise in blood glucose
blood flow to skeletal muscle
dilation of bronchioles and pupils
increased HR and BP

SNS

27

What is the sympathetic nervous system?

fight or flight
rise in blood glucose
blood flow to skeletal muscle
dilation of bronchioles and pupils
increased HR and BP

28

What are the effects of muscarinic receptor binding to the postganglionic effector organs?

Parasympathetic effects

29

What are the effects mediated by the nicotinic neuronal receptors at autonomic ganglia?

SNS effects

30

What is the effect on BP of alpha-1 receptor activation?

vasoconstriction

31

What is the effect on BP of beta-1 receptor activation?

increased HR and force of contraction

32

What is the effect on BP of beta-2 receptor activation?

vasodilation

33

What is the effect on BP of alpha-2 receptor activation?

decrease in SNS outflow

34

What is the postural baroreceptor reflex arc?

an acute compensatory response involved in moment-to-moment adjustments in BP

35

This is an acute compensatory response involved in moment-to-moment adjustments in BP.

the postural baroreceptor reflex arc

36

How is the postural baroreceptor activated?

increased stretch from increased arterial pressure

37

What is RAAS?

long term compensatory response involved in BP adjustment

38

This is a long term compensatory response involved in BP adjustment.

RAAS

39

How is RAAS initiated?

a decrease in renal blood flow

40

What does decreased renal blood flow initiate?

RAAS