Brainscape's Knowledge GenomeTM

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


See full index

BIOL 2402 > ANS > Flashcards

ANS Flashcards

1
Q

Visceral effectors DO or DO NOT depend on the ANS to function?

A

DO NOT

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

Visceral Reflex Arc

A

Receptors, Afferent neurons, Interneurons, Efferent neurons , Effectors

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

What do receptorsof the ANS detect

A

Stretch
Tissue damage
blood chemicals
body temperature

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

What are neurons leading TO the CNS

A

Afferent neurons

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

What are neurons IN the CNS

A

Interneurons

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

What are neurons that carry motor signals AWAY from the CNS?

A

Efferent neurons

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

Visceral reflex that makes adjustments

A

Effectors

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

How does the ANS modify effector activity?

A

Through efferent fibers

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

Part of the brain that contains nuclei controlling both divisions of the ANS
Crucial for emotional ANS processes such as fight or flight
CONTROLS HUNGER THIRST SEX TEMPERATURE

A

Hypothalamus

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

What part of the brain controls Cardiac Vasomotor and Respiratory control? (Keep in mind for all exams)

A

Brainstem/ Medulla Oblongata

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

Governs some ANS reflexes
Defecation and urination controlled by parasympathetic division

A

Spinal cord

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

Control Centers (nuclei) of the ANS are located in the

A

Hypothalamus
Brainstem/ medulla oblongata
Spinal cord

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

Control centers lie in the CNS true or false?

A

True

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

Where is the control center for blood pressure? aka vassomotor

A

Brain stem

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

Fight or flight also known as

A

Sympathetic division

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

What is the first ganglion called in the series of ganglia used in the sympathetic division

A

Celiac ganglion

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

What is the name of the second ganglion used in the sympathetic division

A

Superior messentric ganglion

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

Also called thoracolumbar division

A

The Sympathetic division

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

Has short preganglionic fibers and long postganglionic fibers

A

The sympathetic division

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

Where are the preganglionic cell bodies located for the sympathetic division?

A

Lateral gray horns (LGH)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What spinal nerves does the fibers of the sympathetic division use to travel

A

Exits spinal cord by way of T1 through L2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

____ _____ are distributed to every level of the body.

A

Postganglionic fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

*After entering the sympathetic ganglia there are three nerves that the Sympathetic Division can use to eventually reach their target tissue, what are those three nerves called?

A

Spinal nerves
Sympathetic nerves
Splanchnic nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Preganglionic fibers are myelinated fibers that travel from spinal nerve to the ganglion by way of the _____ ______ ______

A

white communicating rami

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Postganglionic fibers leave the ganglion by way of the gray communicating ramus (unmyelinated fibers ) if innervating the

A

skin or muscles

26
Q

Postganglionic fibers leave the ganglion by way of the sympathetic nerves (unmyelinated fibers) if innervating

A

head neck and chest region

27
Q

PREganglionic fibers bypass chain ganglia and proceed to collateral ganglia (aka prevertebral ganglia) ANTERIOR to the vertebral column if innervating

A

the abdominopelvic region

28
Q

What is considered as the bodies back up system for the sympathetic division to innervate the organs and systems throughout the body?

A

Suprarenal Medullae (paired)

29
Q

The sympathetic division bypasses which two areas to get to the suprarenal medullae

A

The collateral ganglion and the

30
Q

Each adrenal gland is really 2 glands with different functions, what are the two names of each gland Adrenal ____ and Adrenal ____

A

Adrenal Cortex and Adrenal medulla

31
Q

Adrenal medulla (inner core) is essentially a “modified”

A

sympathetic ganglion

32
Q

Adrenal medulla (inner core) consist of modified postganglionic neurons without dendrites or axons called ____ ____

A

chromafin cells

33
Q

Adrenal medulla (inner core) are stimulated by

A

preganglionic sympathetic neurons

34
Q

*Adrenal medulla (inner core) secretes catecholamines what are the names and the amounts?

A

80% EPINEPHRINE
20% NOREPINEPHRINE
SMALL AMT OF DOPAMINE

35
Q

The parasympathetic division is also called the __________ divison

A

craniosacral

36
Q

Fibers of the parasympathetic division travel in which cranial serves

A

III Oculomotor nerve
VII Facial nerve
IX Glossopharyngeal nerve
X Vagus

37
Q

Parasympathetic fibers travel in which sacral spinal cord segments

A

S2 to S4

38
Q

Parasympathetic division has _____ preganglionic fibers aned ______ postganglionic fibers

A

Long preganglionic and short postganglionic

39
Q

Oculomotor nerves (III) ___ pupil and ____ lens

A

narrows pupil and focuses lens

40
Q

Facial nerve (VII)

A

Tear, nasal, and salivary glands

41
Q

Glossopharyngeal nerve IX

A

Parotid salivary gland

42
Q

*Vagus nerve (X)

A

Viscera (organs) as far as proximal half of colon
Cardiac, pulmonary, and esophageal plexus
75% OF ALL PARASYMPATHETIC outflow through CN X

43
Q

____% of all parasympathetic out flow through Vagus Nerve (X)

A

75

44
Q

The ANS uses ONLY TWO types of NT (neurotransmitters) what are their two names

A

Acetylcholine (ACh) and Norepinephrine (NE)

45
Q

Whether a neurotransmitter causes inhibition or stimulation depends on the

A

type of neurotransmitter released AND the receptor

46
Q

The ONLY NT used by the parasympathetic system is

A

Acetylcholine ACh

47
Q

There are TWO different receptors for Acetylcholine ACh which are

A

nicotinic ACh receptors (nAChR)
muscarinic ACh receptors (mAChR_

48
Q

After entering the sympathetic ganglia, there are 3 nerves that the Sympathetic Division can use to reach their target tissue

A

Spinal nerves
Splanchnic nerves
Sympathetic nerves

49
Q

If innervating skin and muscles postganglionic fibers leave the ganglion by way of _____ _____ _____

A

gray communicating ramus

50
Q

gray communicating fibers are myelinated or unmyelinated fibers

A

unmyelinated

51
Q

If innervating the head neck and chest region postganglionic fibers exit the ganglion by way of

A

sympathetic nerves (unmyelinated fibers)

52
Q

Preganglionic fibers of the sympathetic division that travel from the spinal nerve to the ganglion by way of ___ ____ _____

A

white communicating ramus

53
Q

If innervating the abdominopelvic region what nerves will be used

A

splanchnic nerves

54
Q

When using the splanchnic nerves to innervate the abdominopelvic region, the preganglionic fibers BYPASS the spinal chain ganglia to proceed to the

A

collateral ganglia (aka prevertebral ganglia)

55
Q

Which division is the most widespread

A

Sympathetic

56
Q

Somatic is ____ to skeletal muscles

A

direct

57
Q

*The sympathetic nerve innervates the

A

Iris
salivary glands
lungs
heart
thoracic blood vessels
esophagus

58
Q

The spinal nerve innervates

A

sweat glands
piloerector muscles
blood vessels of skin and skeletal muscles

59
Q

the splanchnic nerve innervates

A

liver
spleen
adrenal glands
stomach
intestines
kidneys
urinary bladder
reproductive organs

60
Q

ACh is always excitatory in which receptor of the
ANS

A

nAChR nicotinic receptor

BIOL 2402 (9 decks)

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