Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Foundational Physiology > Autonomic Nervous System > Flashcards

Autonomic Nervous System Flashcards

1
Q

Efferents of the Autonomic Nervous System: Preganglionic cell bodies

A

in CNS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Efferents of the ANS: Postganglionic cell bodies

A

in peripheral ganglia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Sympathetic Nervous System efferents

A

Short pre-ganglionic neurons (T1-L2)

Long post-ganglionic neurons (near spinal cord)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Organ/Tissue involvement in Sympathetic Nervous System activity

A

sympathetic nerve activity to multiple tissues can be increased simultaneously

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Parasympathetic Nervous System efferents

A

Longer pre-ganglionic neurons (cranial nerves and sacral nerves)
Short post-ganglionic neurons (in or near the target tissue)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Organ/Tissue involvement in Parasympathetic Nervous System Activity

A

parasympathetic nerve activity to each tissue is usually under SEPARATE control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Sympathetic effect: Saliva production

A

decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Parasympathetic effect: Saliva production

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Sympathetic effect: Heartrate

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Sympathetic effect: Intestinal mobility

A

decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Sympathetic effect: Glucose release

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Sympathetic effect: Urination

A

decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sympathetic effect: Relaxes/Dilates airway

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Sympathetic effect: Nasal Secretion

A

decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Sympathetic effect: Blood Pressure

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Parasympathetic effect: Heartrate

A

decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Parasympathetic effect: Intestinal mobility

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Parasympathetic effect: Glucose release

A

decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Parasympathetic effect: Urination

A

increase

20
Q

Parasympathetic effect: Relaxes/dilates airway

A

decrease

21
Q

Parasympathetic effect: nasal secretions

A

increase

22
Q

Parasympathetic effect: blood pressure

A

small decrease

23
Q

When do the sympathetic and parasympathetic systems NOT antagonize each other

A

Sexual function:
Parasympathetic- Erection
Sympathetic- Ejaculation

24
Q

T/F There is a lot of parasympathetic innervation of blood vessels

A

FALSE. decreases in blood pressure are mediated mostly by sympathetic withdrawal

25
Q

Parasympathetic: NT and receptor

A

Acetylcholine

Muscarinic receptor

26
Q

Sympathetic: NT and receptor

A

Norepinephrine
Alpha or Beta adrenergic receptors
(some sympathetic postganglionic neurons release acetylcholine i.e. sweat glands)

27
Q

Adrenal Medulla: NT and receptor

A

Acetylcholine
Epinephrine (80%)
Norepinephrine (20%)
Blood vessels

28
Q

Pre-ganglionic NT and receptor in both

A

Acetylcholine

Nicotinic receptor

29
Q

Adrenergic receptor: Alpha- 2 subtypes

A

contractile effects of norepinephrine/epinephrine

blood vessels, urogenital, sphincters

30
Q

Adrenergic receptor: Beta- 3 subtypes

A

B1- stimulatory effects of norepinephrine/epinephrine in the heart
B2- relaxing effects (epinephrine > norepinephrine)
GI tract, urogenital system, airway, some blood vessels

31
Q

The controlled elimination of urine

A

micturition

32
Q

leaking urine

A

incontinence

33
Q

T/F There is parasympathetic, sympathetic, and somatic control of bladder function

A

TRUE

34
Q

Control of Bladder: Parasympathetic Stimulation

A

contraction of bladder wall (Detrusor)

relaxation of internal sphincter

35
Q

Control of Bladder: Sympathetic Stimulation

A

relaxation of bladder wall

contraction of internal sphincter

36
Q

Control of Bladder: Alpha Motor Neuron

A

contraction of external sphincter

37
Q

Detrusor muscle

A

(smooth) relaxed: filling

contract: emptying

38
Q

Internal sphincter

A

(smooth) contracted: filling

relaxed: emptying

39
Q

External Sphincter

A

(striated, like skeletal muscle) contracted: filling

relaxed: emptying

40
Q

Spinal Reflex- Autonomic Afferent (urination)

What reflex activation is expressed?

A

stretch receptors in the bladder wall are activated when the bladder is stretched (filled);
parasympathetic nerves to the bladder walll, causing it to contract

41
Q

Supra-spinal reflexes (urination)

What reflex activated is expressed?

A

Sympathetic- brain stem (micturition center) that causes reflex relaxation of the sphincters allowing urine to leave bladder

42
Q

Activation of the sympathetic nervous system increases blood pressure by:

A
  1. Contracting vascular smooth muscle around blood vessels to decrease their diameters and therefore increase total peripheral resistance
  2. Increasing heart rate, cardiac contractility (SV), and therefore, cardiac output
43
Q

Activation of the parasympathetic nervous system can decrease blood pressure by _____.

A

decreasing heart rate

44
Q

Arterial baroreceptor reflex inhibits what and activates what?

A

inhibition of sympathetic efferents and activation of the parasympathetic efferents so that BP returns to NORMAL

45
Q

Where are baroreceptors located?

A

carotid sinus and aortic arch (goes to brain stem)

46
Q

Hypothalamus functions

A

coordinated regulation of visceral function by ANS and the endocrine system

Foundational Physiology (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions