extra 5 Flashcards

1
Q

what inhibits the avtivity of osteoclasts

A

calcitonin

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2
Q

name for activated vitamin d3

A

caltictrol

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3
Q

what does low estrogen cause

A

higher chance of osteoporosis in menopausal women

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4
Q

canaiculi

A

is where the bone fluid in the labile pool of ca

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5
Q

what kind of hormone is calcitonin

A

peptide hormone

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6
Q

what favours resorption

A

PTH

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7
Q

what increases the risk of kidney stones

A

a high concentration of calcium in the renal filtrate due to hyperparathyroidism with high ca

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8
Q

what kind of hormone is PTH

A

peptide

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9
Q

primary cause of hyperparathyroidism

A

due to PTH tumor

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10
Q

osteomalacia

A

bone demineralization in adults, due to high PTH and low vitamin D

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11
Q

rickets

A

bone remineralization in kinds due to high PTH and low vitamin D

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12
Q

what causes failure of respiration

A

low PTH- hypoparathyroidism

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13
Q

what is tetany and parasthesia cuased by

A

hypoparathyroidism

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14
Q

what does PTH do to phophate in kidneys

A

increase its excretion

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15
Q

7-dehydrocholesterol

A

the biologically inactive precursor of vitamin D3 calcitriol

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16
Q

what does estrogen do

A

increases osteoblast activity and decreases osteoclast activity

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17
Q

what kind of hormone is vitamin d

A

steroid

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18
Q

treatment of rickets

A

vitamin D therapy

19
Q

what does cortisol do to ca regulation

A

into ECF

20
Q

passive filtration of ca
does it go into our out of kidney

A

into kidney from ECF

21
Q

what stimulates PTH secretion

A

low plasma ca

22
Q

what do osteoclasts secrete

A

enzymes and acid

23
Q

bone resoprtion meaning

A

taking calcium into ECF from bone

24
Q

what kind of hyperparathyroidism causes rickets and osteomalacia

A

hyperparathyroidism with vitamin d deficiency

25
Q

what activates genes in dozen cell types in the body

A

vitamin D

26
Q

what activates genes in dozen cell types in the body

A

vitamin Dl

27
Q

limited tissue distribution

A

the idea that alle GLUTs but 4 are present on thier cell membrane

28
Q

insulin effect on fat metabolism

A

dec FA and increases triglyceride storage

inhibits lipolyiss

29
Q

what inhibits lipolyisis

A

insulin

30
Q

how is diabetes mellitus diagnosed

A

glucose tolerance test

31
Q

what hormone does high AA stimulate the secretion of

A

glucagon

32
Q

what diseases occur due to glycosylation reactions

A

neuropathy, nephropaty, cardiovascular disease

33
Q

where do the endorcrine hormones of the pancreas drain from

A

the hepatic portal vein

34
Q

what do glucocorticoids and stress do to insulin receptors

A

decrease thier affinity

35
Q

what does glucagon break down

A

everything

36
Q

what does protein anabolism

A

insulin

37
Q

what does adrenal gland insuficiency lead to

A

increasing affinity of insulin receptors

38
Q

which tissues dont need insulin for glucose uptake

A

brain and liver

39
Q

what does glucose entry in small intestine stimulate

A

GIP and GLP-1

40
Q

what does higher parasympathetic activtity lead to

A

insulin release

41
Q

what does a beta cell tumor cause

A

hypoglycemai

42
Q

what increases the formatin of ketone bodies from fatty acids

A

glucagon

43
Q

what acts in paracrine fashion

A

somatostatin