Renal Flashcards

1
Q

ammoniotelic

A

majority of aquatic animals
excrete ammonia through gills after breaking down a.a

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2
Q

ureotelic

A

terrestrial animals
excrete urea from liver

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3
Q

uricotelic

A

avian. reptiles
excrete uric acid

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4
Q

osmoconformers

A

osmolarity adjusts to surroundings

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5
Q

hyperosmotic regulator

A

osmolarity greater than surroundings
water constantly going into soft parts exposed

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6
Q

hypoosmotic regulator

A

osmolarity less than surrounding
water constantly going out, excrete Na/Cl in glls

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7
Q

specific gravity

A

density of volume of fluid in relation to density of water

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8
Q

afferent arteriole

A

vascular smooth muscle
variable resistor to blood flow, dilates or constricts
take toward the glomerulus

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9
Q

efferent arteriole

A

vascular smooth muscle
variable resistor to blood flow, dilates or constricts
take away from glomerulus

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10
Q

JGA

A

next to glomerular apparatus
associated with afferent arteriole
helps to control vascular resistance

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11
Q

mesangial

A

between JGA and efferent arteriole

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12
Q

macula densa

A

above all the “action”

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13
Q

autoregulation

A

kidneys own ability to control variable resistors in the arterioles
kidney can sense changes in pressure and flow

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14
Q

hypovolemia

A

low blood volume, caused by hemorrhage
drop in blood pressure (Pcap), lower glomeular fltration

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15
Q

baroreceptors

A

pressure receptors, tonically active, sense distension of vessels
mechanically linked to Na+ channels
-rate Na+ influx directly related to action potential frequency

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16
Q

chemoreceptors

A

tonically active
sense chemicals, NaCl in kidney

17
Q

Polyanionic

A

least permeable because glomerular capillary bed repels the negative charge due to also being negative

18
Q

tonically active

A

respond to increase or decrease in action potential frequency

19
Q

perfusion

A

amount of blood going to and through tissue

20
Q

RAAS

A

renin-angiotensin aldosterone system
multiorgan activation

21
Q

renin

A

protein, cleavage
meta trophic receptors

22
Q

aldosterone

A

hormone
promotor receptor

23
Q

angiotension

A

protein
meta trophic receptors

24
Q

angiotensin 1

A

renin and angiotensin

25
Q

ace

A

cleavage enzyme
meets / angiotensin I to make Angiotensin II

26
Q

Angiotensin II

A

very powerful vasoconstrictor
increase vascular resistance and intraceullar Ca+

27
Q

catacholamine

A

amino acid derivative stored in vesicles released by exocytosis

28
Q

Effective circulating volume

A

adequate perfusion
make sure amount of bloodflow appropriate for metabolic needs

29
Q

ADH

A

made in hypothalamus
secreted through posterior pituitary
secreted secondary to RAAS
activates vasopressin

30
Q

vasopressin

A

increase effective circulating volume
accumulate thirst to replace lost fluid

31
Q

factors that effect renal vascular resistance

A

mesangial cells
RAAS
SNS activation
endocrine and paracrine cntrol

32
Q

VEGF

A

change capillary bed integrity
dysfunction due to endothelial cell structure

33
Q

uniport

A

one ion moved by protein

34
Q

cotransport/ symport

A

2+ ions moved by protein

35
Q

antiport

A

1+ ion and a time by vectors are opposite

36
Q

ammonia

A

more lipophilic because no charge
localize to nervous tissue= toxic in body