Physiology

Question 1

Adrenaline affect on glomerulus

Answer 1

Constricts both afferent and efferent

Question 2

Angiotensin affect on glomerulus

Answer 2

Constricts both afferent and efferent

But efferent more

Question 3

What arteriole does angiotensin II constrict more and why

Answer 3

Efferent as it is more sensitive to Angiotensin II

Question 4

ANP and BNP effect on the glomerulus

Answer 4

Constrict efferent and dilate afferent

Question 5

What is the limit of autoregulation of the kidney

Answer 5

80mm/hg systolic

Question 6

What effect do NSAID’s have on the glomerulus

Answer 6

Cause constriction of both efferent and afferent

Question 7

What cells release renin

Answer 7

Juxtaglomerular cells

Question 8

What paracrine cells cause afferent constriction and why

Answer 8

Macula densa from the distal tubule

They notice increased GFR by sensing high solute and release adenosine

Question 9

What stimulates juxtaglomerular cells

Answer 9

1- baroreceptors in the afferent arteriole

2- Sympathetic nerves

3- stimulation from macula densa cells when NaCl levels are low