Brainscape's Knowledge GenomeTM

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


See full index

PHYSL 210 > ANS - Lecture 1 > Flashcards

ANS - Lecture 1 Flashcards

1
Q

The autonomous carries out it’s functions

A

involuntarily

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

What are the 3 functions of the autonomic system

A
  1. maintains homeostasis
  2. controls fight or flight system
  3. rest/digest
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

the 2 anatomical divisions of the nervous system

A

CNS and PNS

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

The peripheral nervous system is found outside of the

A

central nervous system

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

What are the 2 divisions of the PNS

A
  • afferent/sensory
  • efferent/motor
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does each of the following correspond to?
- somatosensory
- visceral sensory
- special sensory

A
  • touch, pain, temperature
  • internal organs
  • special sense organs (visual, olfactory, auditory)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Two subdivisions of the efferent/motor division

A
  • somatic nervous system
  • autonomic nervous system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

somatic motor nerves controls

A

voluntary movements of muscles and involuntary reflexes

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

autonomic motor nerves control

A

involuntary movements of the smooth muscle, cardiac muscle and glands

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

the autonomic system is composed of: (3)

A
  • parasympathetic division
  • sympathetic division
  • enteric nervous system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is smooth muscle

A

muscle tissue found in hollow organs e.g GI tract, bladder, uterus, blood vessels

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

a nerve is

A

a group of nerve fibers travelling together in the PNS; contains both efferent and afferent axons/fibers

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

a neuron is a

A

nerve cell

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

the 12 cranial nerves emerge

A

directly from the brain, including the brainstem, do not emerge from the spinal cord

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

Cranial nerve important for the parasympathetic division

A

Vagus nerve or nerve 10

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

Organization of the spinal cord

A

cervical nerves (neck region),
thoracic nerves (chest region),
lumbar, sacral, coccygeal (lower abdominal/pelvic)

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

How many and what kind of neurons are involved in ANS transmission

A

2 neurons
preganglionic and postganglionic neurons

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

Cell body/axon location of first neuron of the ANS chain (preganglionic)

A

cell body in the CNS; axon extends from the CNS to the ganglia

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

where does the preganglionic neuron synapse with the postganglionic neuron

A

the ganglia; a cluster of neuronal cell bodies OUTSIDE the CNS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

cell body/axon loaction of the second neuron in the ANS chain (postganglionic)

A

cell bodies found outside the CNS in ganglia; axon leaves ganglia and travels to target tissue

21
Q

myelination of pre and postganglionic neurons

A

pregnaglionic: lightly myelinated
postganglionic: unmylelinated

22
Q

Length of the axons of the preganglionic and postganglionic fibers differ between the

A

SNS and PSNS

23
Q

in the PSNS the ganglion is located

A

very close or within walls of target organ

24
Q

Axons of pre and post ganglionic neurons in PSNS

A
  • pre: long - long distance between the spinal cord and the ganglion
  • post: short - short distance from the ganglion to reach organ
25
Q

in the SNS the ganglion is located

A

close to the spinal cord

26
Q

what is the sympathetic trunk/chain (paravertebral ganglion)

A

paired chains of interconnected sympathetic ganglia that lie on either side of the vertebral column

27
Q

length of axon of the pre and postganglionic neurons in the SNS

A
  • pre: short - allows branching and mass discharge
  • post: very long - located further away from target
28
Q

where is the cell body of the preganglionic neurons

A

CNS - brain or spinal cord

29
Q

In the SNS, the cell bodies of the first neuron are found

A

in the thoracic and lumbar regions of the spinal cord

30
Q

In the PSNS, cell bodies are found

A

in brain stem and sacral region of the spinal cord

31
Q

The sympathetic ganglia is

A

a chain of ganglia running parallel to the spinal cord on each side

32
Q

The 3 collateral (pre-vertebral) ganglia are

A
  • celiac ganglion
  • superior mesenteric ganglion
  • inferior mesenteric
33
Q

where are the collateral ganglia located

A

in front of the vertebral column in the SNS

34
Q

axon of sympathetic preganglionic fibers leave the spinal cord by the

A

ventral roots

35
Q

when a dorsal root and ventral root combine it is called

A

a spinal nerve

36
Q

3 pathways a sympathetic preganglionic fiber can take when it leaves the spinal cord

A
  1. synapse with a postganglionic neuron in sympathetic ganglion
  2. travel up/down the chain and synapse in ganglia at other levels
  3. pass through chain, travel to collateral ganglion as splanchnic nerve
37
Q

branch that leads into the ganglion from the spinal nerve carrying a myelinated preganglionic fiber

A

the white ramus communicans

38
Q

branch that goes back into the spinal nerve from ganglion carrying an unmyelinated postganglionic fiber

A

the grey ramus communicans

39
Q

Two main locations and types of ganglia in the sympathetic system:

A

Chain ganglia (para-vertibroganglia): both sides of spinal cord
Collateral ganglia (pre-vertibroganglia): in front of/before vertebral column

40
Q

the adrenal medulla only receives ________ innervation

A

sympathetic

41
Q

sweat glands only recieve _______ innervation

A

sympathetic

42
Q

functions of the sympathetic system dominate during the

A

fight or flight response

43
Q

where are the adrenal glands found

A

just above each of the kidneys

44
Q

the adrenal medulla contains

A

an outer cortex and an inner medulla

45
Q

the adrenal medulla is innervated by sympathetic _________ neurons

A

preganglionic

46
Q

The adrenal medulla itself acts like a modified sympathetic

A

postganglionic neuron

47
Q

adrenal medulla releases the horomones: _______ (80%) and ________ (20%) into the ________

A
  • epinephrine
  • norepinephrine
  • blood
48
Q

actions caused by norepinephrine and epinephrine will stop when

A

they are broken down in the liver

49
Q

norepinephrine and epinephrine produce responses by

A

travelling through the blood to various target organs

PHYSL 210 (16 decks)

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