Brainscape's Knowledge GenomeTM

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


See full index

Functional Anatomy and Embryology > ANS > Flashcards

ANS Flashcards

1
Q

Definition of autonomic nervous system

A

Involved in regulating internal environment of the body.

Has motor and sensory components

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

Definition of sensory fibres

A

Travel with motor fibres, cell bodies in posterior root ganglia, or in sensory ganglia of cranial nerve

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

Definition of motor fibres

A

Innervates smooth muscle and glands, modulate activity of ANS

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

Definition of sympathetic trunk

A

Pair of bundle nerve fibres that run from tp base of the skull to the sacrum

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

Purpose of the autonomic nervous system

A

Involved in regulating the internal environment of body

Have motor, sensory components

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

Location and what do sensory fibres travel with

A

Travel mainly with motor fibres as mixed fibres

Cell bodies in posterior root ganglia (sensory fibres of spinal nerves, sensory ganglia of cranial nerves

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

Function of motor fibres

A

Innervate smooth muscle, glands
Modulate activity of GIT, SAN
Has 2 neurons in series

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

Principle divisions of motor part of ANS

A

Sympathetic

Parasympathetic

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

Where does the sympathetic nervous system arise

A

T1-L2

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

Distribution of sympathetic nervous system

A

All parts of body wall and viscera

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

Function of sympathetic nervous system

A

Moderate visceral functions, HR, peristalsis, sweating

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

Pre and post ganglionic fibres in the sympathetic nervous system

A

Short myelinated preganglionic fibres

Long unmyelinated postganglionic fibres

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

Sympathetic divisions of the ANS, ganglia

A

Sympathetic paired chain ganglia
Collateral unpaired ganglia
Adrenal paired medullae

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

What effect does the sympathetic paired chain ganglia have?

A

Visceral effectors in thoracic cavity, head, body wall and limbs

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

What effect does the collateral unpaired ganglia have?

A

Visceral effectors in abdominopelvic cavity

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

What effect does the adrenal paired medullae have?

A

Organs and systems throughout body, through neurotransmitters in blood

17
Q

What is the sympathetic trunk?

A

Pair of uncle nerve fibres, run from base of skull to sacrum

18
Q

Effects of sympathetic stimulation on motor responses

A 
Staring eyes
Cold clammy skin
Dry mouth
Hair standing on end
Sinking pit in stomach
19
Q

Effects of sympathetic stimulation on sensory fibres

A

Regulation of visceral activity
Only pain is conscious
Referred pain as brain’s map of SNS does not match actual location of pain

20
Q

Where does the parasympathetic nervous system arise

A

Cranio-sacral
Cranial nerves III, VII, IX, X
S2-S4

21
Q

Distribution of parasympathetic nervous system

A

Head and trunk only

22
Q

Function of parasympathetic nervous system

A

Regulating normal functions of organs it supplies

23
Q

Pre and post ganglionic fibres in the parasympathetic nervous system

A

Long myelinated preganglionic fibres

Short unmyelinated postganglionic fibres

24
Q

Locations of the preganglionic neurons in the Para NS

A

S2-S4

Brain stem

25
Q

What ganglia does S2-S4 pass through?

A

Intramural ganglia through pelvic nerves

26
Q

What ganglia does the brain stem pass through?

A

Intramural ganglia through NX

27
Q

What does the intramural ganglia from the pelvic nerves affect?

A

Visceral organs in lower abdominopelvic cavity

28
Q

What does the intramural ganglia from NX nerves affect?

A

Visceral organs of head, neck, thoracic cavity, and most of abdominal cavity

29
Q

What does the thalamus affect?

A

Emotions

Sensory input

30
Q

What does the hypothalamus affect?

A

Sympathetic, parasympathetic

31
Q

What parts of the brain is affected by the hypothalamus

A

Pons

Medulla oblongata

32
Q

Function of the pons

A

Higher levels of respiratory control

33
Q

Function of the medulla oblongata

A

Processing centers for complex visceral reflexes (S and P)

34
Q

What does the medulla oblongata control

A

Spinal cord T1-L2
Sympathetic visceral reflexes
Sacral spinal cord
Parasympathetic visceral reflexes and motor neurons

35
Q

What are the effects of medulla oblongata control

A 
Cardiac centers
Vasomotor centers
Swallowing center
Coughing center
Respiratory rhythmicity center

Functional Anatomy and Embryology (28 decks)

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