Urine Formation and the Control of the Kidney

Name: Urine Formation and the Control of the Kidney
Author: StemPy Lab

How the kidney filters about 180 litres a day and keeps all but 1.5 litres. Filtration, reabsorption and secretion in each part of the nephron, the counter current that makes urine concentrated, and the hormones that tune the kidney: ADH, renin and angiotensin, aldosterone and ANF.

3 lessons, about 1 h 30 min3 simulations11 problems3 practice questionsPython in every lesson

Created by StemPy Lab

Course outline (3 lessons)

Lesson 1about 30 min
Filtration, reabsorption and secretion
Urine forms in three steps. The glomerulus filters the plasma, the tubule takes back almost everything that the body needs, and the tubule adds a few more wastes. This lesson gives the numbers of the filtration and explains what each part of the tubule does.
1 simulation1 practice question1 Python program4 problems
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Lesson 2about 30 min
The counter current mechanism
The human kidney can make urine about four times as concentrated as the filtrate. It does so because the loop of Henle and the vasa recta make the fluid of the medulla saltier with depth, from 300 to about 1200 mOsmol per litre. This lesson explains the counter current mechanism step by step.
1 simulation1 practice question1 Python program4 problems1 Python lab
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Lesson 3about 30 min
Regulation of kidney function
The kidney does not work alone. The hypothalamus, the juxtaglomerular apparatus and the heart control it, by ADH, by the renin-angiotensin mechanism and by ANF. This lesson explains the three controls, and what goes wrong in diabetes insipidus.
1 simulation1 practice question1 Python program3 problems1 Python lab1 question set1 note
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Urine Formation and Its Control: Timed Test

20 questions · 15 min

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Urine Formation and the Control of the Kidney

Course outline (3 lessons)

Filtration, reabsorption and secretion

The counter current mechanism

Regulation of kidney function

Test Your Learning

Your teacher

Discussion (0)