[LEC] UNIT 3.2 Endocrinology Flashcards

(81 cards)

1
Q

Master Gland

A

Pituitary gland

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2
Q

Other name for APG

A

Adenohypophysis

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3
Q

T or F: The intermediate lobe of PG serves no function

A

T

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4
Q

Often obstructs images during MRI or CT
scans

A

Intermediate lobe

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5
Q

Acts as a storage and releases the two
hormones produced by the hypothalamus

A

Posterior Pituitary Gland

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6
Q

APG cells are large, polyhedral, and are supported by the delicate ______

A

reticular fibers

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7
Q

3 cell types found in APG

A

Chromophobe
Acidophilic
Basophilic

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8
Q

T or F: ONLY Acidophilic and Chromophobe are the two cells that are capable of secretion (secretory cells).

A

F

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9
Q

What produces Proopiomelanocortin and Endorphins?

A

ACTH

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10
Q

Precursor of MSH

A

Proopiomelanocortin

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11
Q

Meaning of MSH

A

Melanocyte Stimulating Hormone

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12
Q

GH is structurally related to

A

Prolactin
Human Placental Lactogen

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13
Q

Tropic or Trophic: GH

A

Trophic

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14
Q

Target of GH

A

Long bones

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15
Q

Other name for GH

A

Somatotropin

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16
Q

Inhibitor of GH

A

Somatostatin

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17
Q

Other name for Somatomedin C

A

IGF-1

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18
Q

Stimulants of GH

A

Sleep
Exercise
Fasting

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19
Q

Inhibitors pf GH

A

Somatomedin C
Hyperglycemia

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20
Q

T or F: Serum GH is undetected most of the day for unhealthy individuals

A

F

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21
Q

Meaning of IGF-1

A

Insulin-like Growth Factor-1

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22
Q

Feedback hormone of GH

A

Somatomedin C

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23
Q

T or F: GH antagonizes Insulin

A

T

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24
Q

GH causes an increase in glucose through

A

gluconeogenesis
lipolysis

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25
a-antagonist
norepinephrine
26
B-antagonist
epinephrine
27
T or F: a-antagonist is a GH stimulant
T
28
Women tend to have higher growth hormone than men because of
estrogen sensitization
29
Thyroid gland which is essential for GH function
T4
30
Condition wherein the thyroid gland is not functioning properly
Thyroxine deficiency
31
T or F: Thyroid function must be normal for GH therapy to be effective
T
32
Hormones that influence secretion and metabolic effects of GH:
CESTS Thyroxine Cortisol Estrogen Somatostatin Somatotropin releasing factor
33
FSH stimulates growth of ________ in females
ovarian follicles
34
FSH stimulates _________ in males
sperm production
35
When FSH is produced, it will trigger the selection of one egg, producing an ovarian follicle, then turning it into
corpus luteum
36
Sertoli cells secrete
Androgen Binding Protein
37
ABP binds to which structure
seminiferous tubules
38
Stimulates testosterone production in males
LH
39
LH stimulates ________ in females
progesterone secretion
40
Cortisol is released in response to
Stress Low blood glucose levels
41
3 layers of adrenal cortex
Zona Glomerulosa Zona Fasciculata Zona Reticularis
42
layer where aldosterone is produced
zona glomerulosa
43
Zone where cortisol is produced
zona fasciculata
44
zone where sex hormones are produced
zona reticularis
45
Hormones that require the use of plastic tubes since they adhere to glass
ACTH
46
regulates the thyroid gland’s production of hormones, crucial for metabolism and various physiologic functions
Thyroid stimulating hormones
47
promotes the uptake of iodide
TSH
48
process that transforms iodide to iodine
oxidation
49
swelling that occurs due to a lack of iodine in the diet
hypothyroidism goiter
50
It needs priming by estrogen, thyroid hormones, and insulin to become functional
prolactin
51
T or F: Prolactin is also seen in men, but it does not act on mammary glands because males do not have receptors to produce milk
T
52
Prolactin suppresses testosterone production, leading to
decreased libido erectile dysfunction
53
The major circulating form of prolactin is the
non-glycosylated monomer
54
excessive production of milk
Galactorrhea
55
absence of menstruation, which means that there are no egg cells produced
Amenorrhea
56
feedback hormone of GH
IGF-1
57
inhibitor of GH
somatostatin
58
target gland of GH
multiple tissues
59
feedback hormone of FSH
inhibin
60
Feedback hormone of LH
Estrogen Testosterone Estradiol
61
FSH and LH target
gonads
62
ACTH targets these zones of adrenal cortex
zona fasciculata zona reticularis
63
feedback hormone of ACTH
cortisol
64
feedback hormone of TSH
T3 and T4
65
target tissue of prolactin
breast
66
feedback hormone of prolactin
unknown or itself
67
hormones released by PPG where are they secreted?
oxytocin vasopressin supraoptic nuclei paraventricular nuclei
68
PPG hormones are released by supraoptic nuclei and paraventricular nuclei of which structure
hypothalamus
69
contraction of uterus
Ferguson Reflex
70
Stimulates receptors on the pelvic floor and the uterus
Ferguson reflex
71
Oxytocin is for ejection of milk primed with
estrogen
72
Oxytocin helps with milk _______ while prolactin stimulates milk ________.
letdown production
73
Plays a role in hemostasis at the _______ site following delivery/birthing
placental
74
synthetic version of oxytocin; injected into the mother to induce labor when the pregnancy reaches 40 weeks or more
Pitocin
75
Maintains osmotic homeostasis by regulating water balance
Arginine Vasopressin or AVP or ADH
76
A potent pressor agent
Arginine Vasopressin
77
Principal regulator of ADH secretion:
increased pOsm
78
increase in _______ ________ occurs when sodium levels rise
plasma osmolality
79
Potent stimuli to ADH release:
emetic (dehydration)
80
Inhibitors of ADH release
ethanol cortisol
81
AVP deficiency
Neurogenic DI (diabetes insipidus) /Cranial DI