The urinary system

Question 1

What do the kidneys do?

Answer 1

Regulate water volume, concentrations and ph levels and influences the red blood cell production and blood pressure.

Question 2

what is the kidneys main pupose?

Answer 2

Filter toxic leftovers from the blood and removes it from the body.

Question 3

What organ is a “filter”?

Answer 3

Kidneys

Question 4

What is the outer layer of the kidney?

Answer 4

Renal cortex

Question 5

How many layers does a kidney have?

Answer 5

3

Question 6

What is the renal medulla?

Answer 6

Middle layer of the kidney

Question 7

What is the structure of the renal medulla?

Answer 7

A set of cone shaped massess of tissue that secrete urine into tiny sac like tubules.

Question 8

What is the inner layer of a kidney?

Answer 8

Renal pelvis

Question 9

What does the renal pelvis do?

Answer 9

A funnel shaped tube surrounded by smooth muscle that uses peristalsis to mobve the urine out of the kidney and into the ureter.

Question 10

Where does oxygenated blood enter the kidey from?

Answer 10

Large renal arteries

Question 11

What happens as the blood enters the kidneys?

Answer 11

The renal arteries branch many times ending in loads of capillary groups.

Question 12

What are the cappilaries made up of?

Answer 12

Loads of nephrons

Question 13

What are the three steps involving the nephron?

Answer 13

Glomeaur filtration, Tubular reabsorbtion, Tubular secretion.

Question 14

What is the nephron?

Answer 14

A tubule that is closed at one end and opens into a collecting duct at the other.

Question 15

What does the closed end of the nephron form?

Answer 15

Forms the cup shaped glomerular (bowmans) capsule which completley encloses a coiled tuft of capillaries (the glomerulus).

Question 16

After the glomerular capsule what parts are left of the nephron?

Answer 16

The proximal convoluted tubule, the medullary loop (loop of henry), the distal convoluted tubule leading into the collecting duct. About 3cm long.

Question 17

Where does the renal artery enter the kidney?

Answer 17

Hilium

Question 18

What does the renal artery do after reaching the hilium?

Answer 18

Divide into smaller arteries and arterioles.

Question 19

How many walls thick are the glomerulus and the glomerular capsule?

Answer 19

Consist of a single layer of flat epithelial cells to facilitate filtration.

Question 20

What are the walls of the remainder parts of the nephron made up of?

Answer 20

Single layer of simple squamous epithelium tissue.

Question 21

What organ forms the urine?

Answer 21

Kidneys

Question 22

Where does filtration take place?

Answer 22

Through the semi-permaeble walls of the glomerluar capillaries and capsule.