Physiology 2

Question 1

name the part of the kidney that has a granular appearance

Answer 1

renal cortex

Question 2

name the part of the kidney that has a striped appearance

Answer 2

renal medulla

Question 3

name the functional unit of the kidney

Answer 3

the nephron

Question 4

filtration, reabsorption and secretion are the 3 functional mechanisms of what?

Answer 4

the nephron

Question 5

the afferent arteriole drains into the __________ which then drains into a _________ arteriole then ____________ capillaries then venule then ____

Answer 5

the afferent arteriole drains into the GLOMERULUS which then drains into a EFFERENT arteriole then PERITUBULAR capillaries then venule then VEIN

Question 6

fluid from the glomerulus drains into what?

Answer 6

bowmans capsule

Question 7

state route of fluid from bowmans capsule

Answer 7

glomerulus
bowman's capsule
proximal tubule
loop of henle
distal tubule
collecting duct
to renal pelvis

Question 8

the fluid is referred to urine at what point in the route?

Answer 8

collecting duct

Question 9

name the 2 nephron types

Answer 9

cortical (80%) and juxamedullary (20%)

Question 10

name the nephron:

gives rise to more to more concentrated urine

longer loop of Henle

single artery named the vasa recta

Answer 10

juxtamedullary

Question 11

which arteriole has greater diameter?

Answer 11

afferent arteriole has greater diameter than efferent arteriole

Question 12

name the special cell that makes up the inner layer of the bowmans capsule

Answer 12

podocytes

Question 13

what is sandwiched between the endothelial cells and podocytes?

Answer 13

basement membrane or basal lamina

Question 14

what is the juxtaglomerular apparatus?

Answer 14

part of the tubule that passes in-between the afferent and efferent arterioles

Question 15

what cells produce and secrete renin?

Answer 15

granular cells

Question 16

name the salt detectors of the juxtaglomerular apparatus

Answer 16

macula densa

Question 17

tubular secretion goes from what to what?

Answer 17

peritubular capillary to kidney tubule

Question 18

tubular reabsorption goes from what to what?

Answer 18

kidney tubule to peritubular capillary

Question 19

what is the average GFR?

Answer 19

125ml/min

Question 20

rate of filtration of X = ? x ?

Answer 20

rate of filtration of X = [X]plasma x GFR

Question 21

rate of excretion of X = ? x ?

Answer 21

rate of excretion of X = [X]urine x Vu

Question 22

Rate of reabsorption of X = ? - ?

Answer 22

Rate of reabsorption of X = rate of filtration of X – rate of excretion of X

Question 23

If rate of filtration >/< rate of excretion, net reabsorption of that substance has occurred

Answer 23

If rate of filtration > rate of excretion, net reabsorption of that substance has occured

Question 24

If rate of filtration >/< rate of excretion, net secretion of that substance has occurred

Answer 24

If rate of filtration < rate of excretion, net secretion of that substance has occurred

Question 25

Rate of secretion of X = ? - ?

Answer 25

Rate of secretion of X = rate of excretion of X – rate of filtration of X