Brainscape's Knowledge GenomeTM

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


See full index

Physiology Exam 3 > Lectures 15, 16 > Flashcards

Lectures 15, 16 Flashcards

1
Q

Anterior lobe also known as

A

Adenohypophysis

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

Posterior lobe also known as

A

Neurohypophysis

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

Which lobe contains neurons descending from hypothalamus?

A

Posterior

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

Which lobe secretes hormones synthesized in hypothalamus that are then carried to veins?

A

Posterior

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

What lobe is regulated by hypothalamic releasing and inhibiting hormones?

A

Anterior

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

Where are hypothalamic-releasing and inhibiting hormones released from?

A

Terminal axons at the median eminence

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

Hypothalamic hormones are delivered directly to ___________ in high concentrations

A

Anterior pituitary

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

Hypothalamic hormones generally don’t

A

Appear in systemic circulation

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

Thyrotropin releasing hormones stimulates

A

Thyroid stimulating hormone and prolactin

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

Gonadotropin realeasing hormone stimulates

A

LH and FSH

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

Corticotropin releasing hormone stimulates

A

Adrenocorticotropin

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

Somatostatin inhibits

A

GH and prolactin

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

Prolactin-releasing factor stimulates

A

Prolactin

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

Dopamine inhibits and stimulates

A

Inhibits Prolactin, ACTH, and stimulates GH

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

What is the primary inhibitor of prolactin?

A

Dopamine

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

TSH target

A

Thyroid glands

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

LH target

A

Gonads

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

ACTH target

A

Adrenal gland

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

GH target

A

All tissues

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

Prolactin target

A

Mammary glands and gonads

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

FSH target

A

Gonads

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

Thyrotroph stimulators

A

TRH from hypothalamus
Decreases in T3, T4

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

Thyrotroph inhibitors

A

Dopamine
Somatostatin
Increases in T3, T4

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

Corticotroph stimulators

A

CRH
Decrease in cortisol
ADH
Stress

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

Corticotroph inhibitors

A

Increase in cortisol
ACTH
Somatostatin
Dopamine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Gonadotroph stimulators

A

GnRH
Activin
Pheromones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Gonadotroph inhibitors

A

Testosterone
Estrogen
Inhibin
Melatonin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Lactotroph stimulators

A

TRH
Estrogen
Suckling
Prolactin releasing factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Lactotroph inhibitors

A

Dopamine
Somatostatin
Prolactin

30
Q

Decreased glucose will stimulate or inhibit GH

A

Stimulate

31
Q

Decreased FFA will stimulate or inhibit GH

A

Stimulate

32
Q

Increased AA will stimulate or inhibit GH

A

Stimulate

33
Q

Somatostatin will stimulate or inhibit GH

A

Inhibit

34
Q

Increased glucose and FFA will stimulate or inhibit GH

A

Inhibit

35
Q

Hypoglycemia/fasting/starving will stimulate or inhibit GH

A

Stimulate

36
Q

Obesity will stimulate or inhibit GH

A

Inhibit

37
Q

Somatomedins will stimulate or inhibit GH

A

Inhibit

38
Q

Direct anabolic effects of GH

A

Increased Ca absorption from gut, increased P absorption from liver, increased protein synthesis in liver

39
Q

Indirect anabolic effects of GH

A

Increased lean muscle mass, linear bone growth, organ size/function

40
Q

IGF-1 is

A

Somatomedin C

41
Q

IGF-2 is

A

Somatomedin A

42
Q

Direct catabolic effects of GH

A

Increased gluconeogenesis in liver to maintain blood glucose in normal range
Also increases lipolysis and formation of ketones

43
Q

Deficiency of GH results in

A

Dwarfism

44
Q

Excessive GH secretion results in

A

Acromegaly

45
Q

What two hormones are released from posterior pituitary?

A

ADH and Oxytocin

46
Q

Prepropressophysin is the peptide precursor of

A

ADH

47
Q

Prepropressophysin contains

A

ADH + neurophysin II, plus signal peptide

48
Q

Prepro-oxyphysin is the peptide precursor of

A

Oxytocin

49
Q

Major stimulus for oxytocin secretion

A

Suckling

50
Q

Non-major stimulation of oxytocin

A

Stimulation of cervix by fetus, resulting in uterine contractions

51
Q

Does oxytocin work on male reproductive organs, or only female?

A

Male too!

52
Q

Decreased plasma osmolarity stimulate ADH or inhibit

A

Inhibit

53
Q

Increased blood volume stimulate ADH or inhibit

A

Inhibit

54
Q

Increased blood pressure stimulate ADH or inhibit

A

Inhibit

55
Q

Increased plasma osmolarity stimulate ADH or inhibit

A

Stimulate

56
Q

Decreased blood volume stimulate ADH or inhibit

A

Stimulate

57
Q

Ethanol stimulate ADH or inhibit

A

Inhibit

58
Q

Decreased blood pressure stimulate ADH or inhibit

A

Stimulate

59
Q

Pain and nausea stimulate ADH or inhibit

A

Stimulate

60
Q

Hypoglycemia stimulate ADH or inhibit

A

Stimulate

61
Q

Glucocorticoids stimulate ADH or inhibit

A

Inhibit

62
Q

Where does ADH have its two major actions?

A

Kidney and vascular smooth muscle

63
Q

What is the ADH receptor?

A

V2 receptor

64
Q

V2 receptor uses what enzyme and second messenger system

A

Adenylyl cyclase + cAMP

65
Q

In the kidneys, when ADH increases it increases the water permeability of what cells

A

Principal cells

66
Q

In the kidneys, when ADH increases it increases the water permeability of principal cells where?

A

Distal convoluted tubules and collecting ducts of kidneys

67
Q

When cAMP is activated in the kidneys, what is inserted into the membrane of principal cells?

A

Aquaporin 2

68
Q

Aquaporin 2 inserted into membrane of principal cells when ADH is increased results in dilute or concentrated urine?

A

Concentrated

69
Q

Disease that involves lack of ADH secretion (circulating ADH is low)–> Can be located at hypothalamus or pituitary

A

Central diabetes insipidous

70
Q

Disease in which posterior pituitary normal, but principal cells in collecting duct unresponsive to ADH

A

Peripheral or nephrogenic diabetes insipidus

Physiology Exam 3 (13 decks)

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