Brainscape's Knowledge GenomeTM

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


See full index

ANAT 392 - Meag > AUTONOMIC NERVOUS SYSTEM > Flashcards

AUTONOMIC NERVOUS SYSTEM Flashcards

1
Q

what are the two functional divisions of the NS

A 
Somatic part 
Visceral part (autonomic)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does the somatic part innervate

A

skin and skeletal muscles

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

Peripheral distribution of the somatic NS is done by

A

spinal and cranial nerves

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

In the somatic part of the NS peripheral how many neurons typically connect the CNS with the organ

A

1

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

the somatic part of the NS is mainly involved in…

A

receiving impulses from external environment and responding accordingly

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

what does the visceral part of the NS innervate

A

internal organ sysetms, smooth muscles, and glandular tissues

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

the visceral (autonomic) part of the NS is mainly involved in…

A

receiving information from internal milieu and initiating appropriate response (homeostasis)

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

What is the peripheral distribution of the autonomic NS done by

A

sympathetic & parasympatheric system

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

How many neurons are there between the CNS and the target organ in the automic NS

A

2 neurons

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

3 characteristics of the sympathetic NS

A
  • Fight or flight
  • Catabolic
  • mobilize energy stores
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

3 characteristics of the parasympathetic NS

A
  • Rest and repose
  • Anabolic
  • Growth, tissue repair/maintenance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Sympathetic fibres arise from

A

lateral horn of the spinal at level of T1-L2 spinal segments

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

What are the two possible routes of the fibres of the sympathetic system

A
  1. Synapse at the para-vertebral ganglia and distribute to the thorax, head, & neck and limbs
  2. Bypass the para-vertebral ganglia, form the splanchnic nerves, synapse in pre-vertebral ganglia in the abdomen and supply the abdominal and pelvis organs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

parasympathetic fibres arise from…

A

either the nuclei in brainstem or from lateral horn of the spinal cord at the level of S2–S4 spinal segments

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

The parasympathetic fibers arising from brainstem are distributed via ____

A

cranial nerves

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

What do the parasympathetic fibres arising from the brainstem supply

A

the head & neck and thorax, and most of the abdominal viscera down to left 1/3 of transverse colon

17
Q

What do the parasympathetic fibers originating from the spinal cord supply

A

the remaining abdominal viscera and all of pelvic viscera

18
Q

All parasympathetic fibers syynapse at a ….

A

visceral ganglia prior to supplying the target organ

19
Q

Do parasympathetic fibres supply limbs?

A

no

20
Q

Where are the 2 centers of the parasympathetic system

A
  1. brainstem

2. in lateral hornal of spinal cord segments S2-S4

21
Q

where are the paravertebral ganglia? what occurs at tem

A

on either side of vertebral column

Some sympathetic fibres will choose to synapse here activaating secondary neurons

22
Q

How does nerve impulse get from the para-vertebral ganglia to the target organ

A

postganglionic fibres

23
Q

What occurs to the preganglionic fibres that bypass the paravertebral ganglion

A

head to the prevertebral ganglia

24
Q

Where do you fing the pre-verteberal ganglia

A

in the abdomen

25
Q

What are the sympathetic fibres which fail to synapse in the paravertebral ganglion called

A

splanchnic

26
Q

What do splanchnic nerves supply

A

the pelvic and abdominal viscera. NOT thorax

27
Q

In what spinal segments is a lateral horn present

A

in T1-L2 segments

28
Q

What does lateral horn contain

A

sympathetic neurons

29
Q

Where is the main center for sympathetic neurons in the body

A

lateral horns of T1-L2 segments

30
Q

Which cranial nerves distribute parasympathetic fibres

A

3,7,9,10

31
Q

All ganglion in the sympathetic system are located very closely to…

A

the target organ

32
Q

What are two similarities of the sympathetic and parasympathetic systems

A

Similar in structure

  • They both have ganglia
  • Neither will directly reach an organ - must synapse in a ganglion first
33
Q

what are 3 differences between the sympathetic and parasympathetic systems

A
  • Sympathetic fibres can only synapse in either para-vertebral of pre-vertebral
  • Parasympathetic fibres can only synapse in visceral ganglia
  • Para-sympathetic system has longer preganglionic fibres and shorter post-ganglionic fibres

ANAT 392 - Meag (18 decks)

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