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Flashcards in The Kidneys Deck (20):
1

What are the structures in a nephron?

Bowmanns capsule, Proximal convoluted tubule, loop of henle, Distal convoluted tubule, collecting duct

2

What is purpose is nephron?

help balance water and mineral ions

3

What is the glomerulus

A tangle of capillaries

4

What happens at proximal convoluted tubule?

Site of reabsorbtion

5

What are the three structures in kidney?

1. Cortex
2. Medulla
3. Pelvis

6

What supplies the kidney with blood?

Renal artery

7

How is blood removed?

Renal veins

8

What are the levels of urea in renal veins compared to renal vein?

Lower levels

9

What is levels of glucose in renal veins compared to renal artery?

Similar levels of glucose

10

What makes up cortex

Dense capillary network

11

Where are tubules located?

In the medulla

12

What colours are the cortex compared to the medulla?

The cortex is darker
The medulla is lighter in colour

13

Which is on the outside of the kidney?

Cortex followed by medulla and then pelvis in middle

14

Where does ultrafiltration take place

Bowmanns capsule

15

What happens in bowmanns capsule

Removal of nitrogenous waste

16

How does bowmanns capsule work?

The glomerulus has an afferent end which is wide and efferent end which is thin.
The pressure this creates forces blood through wall and then basement membrane.
Podacytes act like filter and pedicles wrap around
Leaves filtrate

17

What is function of podacytes?

Acts like a filter

18

Where does the liquid and small molecules move from

Moves from glomerulus to bowmanns capsule

Pass through the capillary wall, basement membrane, epithelium of bowmanns capsule

19

Whats the liquid and small molecules called when in bowmans capsule?

Filtrate

20

What are the three stages of excretion?

1. Ultrafiltration- removal of substances from blood to make filtrate

2. Selective Reabsorption - useful substance reabsorbed from filtrate to blood

3. Excretion - removal of unwanted substance in form of urine