Week 10 and 11 Endocrine Flashcards

1
Q

Endocrine system: slow or fast

A

slow messenger vs nervous system (hormones vs neurons) several hours

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2
Q

Endocrine glands produces

A

Hormone secretion to blood

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3
Q

hormone function

A

chemical comp and volume
metabolism/energy production
adjust to emergency and environmental demands (climate)
growth and development/ reproduction

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4
Q

3 kinds of endocrine hormones

A

Amines
proteins and peptides
steroids

negative feedback control how much secreted (needed)

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5
Q

Hypothalymus function

A

Portion of brain that links nervous system to endocrine system via pituitaryHyp

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6
Q

Hypothal location

A

below thalamus just above brain stem
forms ventral part of diancephalan

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7
Q

Hypothal fx

A

responsible for some function of autonomic nervous system

body temp, hunger, thirst, fatigue

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8
Q

Pituitary structure

A

anterior and posterior
size of pea
protrusion off hypothalamus in sphenoid body cavity
middle of cranial fossa at base of brain in middle

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9
Q

Pituitary fx

A

master gland
homeostasis, influences other endocrine glands

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10
Q

Neurosecretory from hypothalamus secrete

A

oxytocin and ADH

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11
Q

Posterior pituitary stores

A

oxytocin and ADH

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12
Q

Oxytocin fx

A

Uterine muscles
mammary glands

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13
Q

ADH fx

A

kidney tubules
stimulates water reabsorption

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14
Q

Oxytocin creates which kind of feedback loop

A

positive

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15
Q

intermediate pituitary gland

A

melanocyte stimulating hormone to produce mealanin

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16
Q

posterior pituitary

A

oxytocin and ADH

17
Q

anterior pituitary

A

ACTH, TSH, LH, FSH, Prolactin, GH

18
Q

Pineal gland secretes

A

Secretes melatonin

19
Q

Pineal fx

A

Responds to light
photoperiodic or seasonal functions
secretes melatonin to regulate sleep/wake
in center of brain

20
Q

Pineal path

A

info (light) from eye, goes through superior cervical ganglion then up to pineal gland

21
Q

Hypothalamus secretes

A

TRH

22
Q

TRH increases production of

A

TSH

23
Q

Adenohypophysis produces (ant. pituitary)

A

TSH

24
Q

TSH increases production of

A

T3 T4

25
Q

Thyroid secretes

A

T3 T4

26
Q

Thyroid fx

A

regulates blood calcium level - releases calcitonin in response to high calcium levels
release T3 T4

27
Q

Parathyroid fx

A

if calcium falls below level, parathyroid gland secrete parathyroid hormone to bring blood calcium back up

28
Q

Thymus fx

A

immunity
area for T cell maturation
Lymphocytes come into thymus to be secreted as T cells or thymosin to stimulate development of T cells

29
Q

Adrenal location

A

superior aspect of kidneys
inner medulla and outer cortex

30
Q

Adrenal medulla secretes

A

epinephrine and norepinephrine
(stress hormones)

31
Q

Adrenal cortex secretes

A

Mineralcortecoids
Glucocortocoids
Adrogens

32
Q

Blood pressure falls kidneys secrete

A

Renin

33
Q

Renin causes

A

rise in BP

34
Q

If blood sugar is high the pancreas

A

secretes insulin to stimulate glycogen formation in liver to turn glucose into glycogen

35
Q

If blood sugar is low the pancreas

A

secrets glucagon to take glycogen out of stored state in Liver

36
Q

Testes stimulated by LH and FSH secrete

A

testosterone which creates sperm cells

37
Q

Ovaries stimulated by LH and FSH secrete

A

estrogen to encourage development of eggs