Kidneys 2 - Anatomy & Nephrons

This lesson covers:

  1. The anatomy of the urinary system, including the kidneys, ureters, bladder, and urethra 
  2. The anatomy of the nephron, including the glomerulus, and the different parts of the tubule

Blood enters the kidneys via the renal and leaves via the renal .

arteries
veins

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2

Diagram showing the anatomy of the kidneys with labelled parts including the kidneys, ureters, and bladder.

Which letter on this diagram represents the kidneys? 

A

B

C

D

E

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Diagram of kidney anatomy with labelled parts including A, B, C, D, and E.

What is A indicating on this diagram? 

Ureters

Renal artery

Urethra

Kidney

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Diagram of kidney anatomy showing labelled parts including the bladder.

Which letter on this diagram represents the bladder? 

A

B

C

D

E

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Which structure carries urine from the bladder out of the body? 

Ureter

Urethra

Nephron

Renal vein

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Diagram showing the structure of a nephron in the kidney, including the glomerulus, tubules, and collecting duct.

What structure is shown in the diagram above? 

Nephron

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reabsorption is the process whereby certain molecules (e.g. ions, glucose, and amino acids), are reabsorbed from the filtrate, as it passes through the nephron.

Selective

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True or false? Selective reabsorption takes place throughout the nephron.

True

False

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Diagram illustrating the process of urea reabsorption in the kidneys.

How much urea is selectively reabsorbed? 

None

It depends on how much we have in the blood already 

Almost all

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Diagram showing selective reabsorption of potassium and sodium ions.

How many ions are selectively reabsorbed? 

It depends on how many we already have in the blood

All

None

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Diagram showing the molecular structure of glucose with carbon, hydrogen, and oxygen atoms.

How much glucose is selectively reabsorbed? 

It depends on how much we have in the blood already 

Almost all

None

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