hormones Flashcards

1
Q

major endocrine structures

A

hypothalamus, pineal, pituitary, thyroid, adrenal, pancreas, gut, gonads

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2
Q

control of hormonal secretions

A

hypothalamus

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3
Q

pineal gland

A

reproductive maturation, body rhythms

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4
Q

anterior pituitary

A

hormone secretion by thyroid, adrenal cortex, and gonads, growth!

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5
Q

posterior pituitary

A

water and salt balance

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6
Q

thyroid

A

growth and development, metabolic rate

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7
Q

adrenal cortex

A

salt and carb metabolism, inflammatory reactions

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8
Q

adrenal medulla

A

emotional arousal

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9
Q

pancreas

A

sugar metabolism

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10
Q

gut

A

digestion and appetite control

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11
Q

gonads (testes and ovaries)

A

body development, maintenance of reproductive organs

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12
Q

endocrine communication

A

goes straight into bloodstream to affect distant organs

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13
Q

types of chemical communication

A

1) endocrine
2) synaptic
3) autocrine
4) paracrine
5) pheromone
6) allomone

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14
Q

2 exterior chemical communications

A

pheromone and allomone

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15
Q

AKA neurocrine function

A

release of chemical signal (NT) into synaptic cleft to affect postsynaptic membrane

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16
Q

paracrine communication

A

chemical signal diffuses to nearby cells

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17
Q

pheromone communication

A

pheromones release into outside environment to affect other individuals of same species

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18
Q

allomone communication

A

allomones released by members of one species to affect behaviors of another species

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19
Q

principles of hormones

A

1) hormones act gradually
2) hormones change intensity and probability of behavior
3) hormones change behaviors, behaviors change hormones
4) hormones has multiple affects, and may be affected by multiple things
5) hormones have pulsatile secretion
6) hormones follow rhythms
7) hormones interact
8) hormones only affect cells with corresponding receptor proteins

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20
Q

neuroendocrine cells

A

bridge gap between neural activity and endocrine activity - release hormone into bloodstream at synapse

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21
Q

which is faster: neural or hormonal messages

A

neural

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22
Q

three categories of hormones

A

peptide, amine, steroid

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23
Q

which hormone is composed of lipids and can pass through phospholipid bilayer?

A

steroid

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24
Q

peptide and amine hormones made up of

A

proteins

25
Q

oxytocin

A

pair bonding, uterine contractions, milk lactation

26
Q

vasopressin

A

ADH - repress urine production

27
Q

TSH

A

peptide hormone - thyroid stimulating hormone - increases release of thyroid hormone from thyroid gland and markedly affects thyroid size

28
Q

gonadotropins

A

FSH and LH

29
Q

follicle stimulating hormone

A

women: growth of follicles with eggs and estrogen
men: sperm production

30
Q

LH

A

luteinizing hormone:
women: corpora lutea —> progesterone
men: testosterone

31
Q

prolactin

A

women: milk production
parental behavior

32
Q

growth hormone

A

AKA somatotropin. almost exclusively during sleep.

33
Q

inhibits GH

A

starvation, vigorous exercise, intense stress

34
Q

evokes GH release from AP

A

ghrelin

35
Q

releasing hormones

A

corticotropic RH
thyroid RH
gonadotropin RH

36
Q

hormones in posterior pituitary

A

vasopressin and oxytocin

37
Q

blood system in pituitary

A

hypophyseal portal system

38
Q

nuclei in hypothalamus

A

supraoptic and paraventricular

39
Q

what produced hormones on posterior pituitary

A

supraoptic and paraventricular nuclei

40
Q

tropic hormones

A

adrenocorticotropic
thyroid stimulating
follicle stimulating
luteinizing

41
Q

where are tropic hormones

A

anterior pituitary

42
Q

where are neuroendocrine cells

A

hypothalamus

43
Q

hormones in cortex

A

glucocorticoid
mineralocorticoids
sex corticoids

44
Q

what is glucocorticoid

A

cortisol

45
Q

a mineralocorticoid to conserve sodium

A

aldosterone

46
Q

sex corticoid for sex characteristics

A

androstenedione

47
Q

medulla is mediated by

A

SNS

48
Q

hormones in medulla

A

E and Ne

49
Q

hormones in gonads

A

FSH and LH

50
Q

in ovaries, FSH

A

egg release, estrogen

51
Q

in ovaries, LH

A

corpus luteum, progesterone

52
Q

in testes, FSH

A

sertoli cells, sperm

53
Q

in testes, LH

A

leydig cells, testosterone
“ladies dig men with testosterone”

54
Q

hormones in thyroid

A

thyroxine, triiodothyronine, calcitonin

55
Q

which two hormones for metabolism

A

thyroxine and triodothyronine

56
Q

which hormone is for bones and Ca metabolism

A

calcitonin

57
Q

true hormones target the

A

change

58
Q

tropic hormones target the

A

organ to release true hormones

59
Q

releasing hormones target the

A

anterior pituitary