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#Anatomy Lab :) > Hormones > Flashcards

Hormones Flashcards

1
Q

what is the function of aldosterone

A

Aldosterone – works to retain Na and water

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2
Q

what is the function of ADH

A

ADH – increases water retention though increases permeability of collecting ducts

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3
Q

Where does aldosterone act

A

on the kidneys

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4
Q

where does ADH act

A

on the kidneys

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5
Q

what organ secretes aldosterone

A

Aldosterone – adrenal gland

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6
Q

what organ secretes ADH

A

ADH –posterior pituitary

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7
Q

what is the relationship between aldosterone and ADH

A

Both act synergistically

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8
Q

What are the Stress conditions; dehydration in Aldosterone

A

Aldosterone- increases in response to renin levels which are specialized cells secreted by the kidney when the body is dehydrated, signals kidneys to retain more water rather then excreting it into urine

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9
Q

What are the Stress conditions; dehydration in ADH

A

ADH-Greater volume of more dilute urine produced due to increase in ADH which causes Kidneys to retain water

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10
Q

what is the function of FSH

A

FSH – regulates growth, puberty maturation development, reproductive processes

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11
Q

what is the function of LH

A

LH – in females ovulation, in males produce testosterone

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12
Q

Where does FSH/LH act

A

Reproductive organs

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13
Q

what organ secretes FSH /LH

A

Both anterior pituitary

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14
Q

What is the Relationship between FSH and LH

A

Both act synergistically

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15
Q

What happens to to FSH under stress conditions

A

FSH-increase can cause poor ovarian response to ovarian stimulation due to poor blood flow from dehydration causing blood to get thick

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16
Q

what happens to LH under stress conditions

A

LH-dehydration causes a decrease in LH which can impair menstrual cycles by causing delaying and inhibiting eggs from being released

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17
Q

what is the function of prolactin

A

Enables women to produce breast milk

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18
Q

where does prolactin act

A

on the mammary gland

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19
Q

what organ secrete prolactin

A

posterior pituitary

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20
Q

what happens to prolactin under stress conditions

A

decreases prolactin which inhibits breast milk production

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21
Q

what is the function of oxytocin

A

Stimulates contractions during child birth, helps secrets breast milk

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22
Q

where does oxitocin act

A

On the mammary gland and uterus

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23
Q

what organ secretes oxitocin

A

Posterior pituitary

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24
Q

what happens to oxitocin under stress conditions

A

decreases oxytocin levels and can prevent milk ejection reflex and inhibit breastfeeding

25
Q

what is the function of calcitonin

A

it decreases blood calcium levels

26
Q

what does what does PTH do ?

A

is increases calcitonin levels

27
Q

where does calcitonin act

A

Bones and Kidneys

28
Q

where is calcitonin secreted from

A

thyroid

29
Q

where is the parathyroid hormone secreted from

A

the parathyroid gland

30
Q

what is the relationship between calcitonin and parathyroid

A

anatagonistic

31
Q

what happens to calcitonin under stress

A

Calcitonin and increases Parathyroid levels which can lead to hypercalcemia (too much calcium in the blood) causing kidney stones and kidney failure

32
Q

what is the function of TSH

A

TSH – stimulates the thyroid to produce T4

33
Q

What is the function of TRH

A

It stimulates the release of TSH

34
Q

Where does TSH act

A

the thyroid

35
Q

where is TSH secreted

A

the anterior pituitary

36
Q

where does TRH act

A

the anterior pituitary

37
Q

where is TRH secreted

A

the hypothalamus

38
Q

what is the relationship between TRH and TSH

A

TRH stimulates TSH which stimulates T4

39
Q

What happens to TSH and TRH under stress conditions

A

dehydration disrupts the negative feedback loop so that TRH doesn’t stimulate enough TSH which impacts T4 stimulation

40
Q

what is the function of T4

A

It is the circulating form

41
Q

what is the function of t3

A

maintains metabolism and body heat, protein synthesis, bone growth, among many other necessary functions for the body to work

42
Q

where do t4 and t3 act

A

All tissues of the body

43
Q

what organ secretes t4

A

T4 – thyroid

44
Q

what organ secretes t3

A

t3- cells

45
Q

what is the relationship between t3 and t4

A

T4 is the circulating form which when binds to cells gets converted to T3. T3 is the active form

46
Q

what happens to t3 and t4 under stress conditions

A

decreases T4 stimulation which causes irregularities in T3 conversion impacting metabolism maintenance and body heat

47
Q

what is the function of cortisol

A

Cortisol – body’s response to stress

48
Q

what is the function of ACTH

A

ACTH – Stimulates the release of cortisol

49
Q

Where does cortisol act

A

Cortisol –body tissues that use glucose

50
Q

where does acth act

A

adrenal cortex

51
Q

what organ secretes cortisol

A

Cortisol – adrenal cortex

52
Q

what organ secretes ACTH

A

ACTH – anterior pituitary

53
Q

What is the relationship between acth and cortorisol

A

ACTH stimulates the release of cortisol

54
Q

what happens to atch and cortisol under stress conditions

A

increases ACTH which increases Cortisol levels making the body more susceptible to heart disease, excessive weight gain, and high blood sugar

55
Q

what is the function of growth hormone

A

Stimulates protein synthesis and growth

56
Q

where does growth hormone act

A

cells

57
Q

what organ secretes growth hormone

A

Anterior pituitary

58
Q

what happens to growth hormone under stress

A

decreases GH which can cause inhibited protein synthesis and impact puberty levels in children or cause anxiety/depression/ decrease in stamina in adults (also can lead to increase in body fat around the waist)

#Anatomy Lab :) (9 decks)

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