4. Kidney Structure

Question 1

name the two roles of the kidneys

Answer 1

1. Osmoregulation
2. Excretion
3. reabsorbs important amino acids salts glucose via co-transport

Question 2

define osmoregulation

Answer 2

maintaining water potential of blood by removing excess water or retaining water

Question 3

define excretion

Answer 3

removing nitrogenous waste in the form of urea, from the blood

Question 4

name the key structures of the kidneys

Answer 4

• Nephrons
• Cortex
• Medulla
• Renal Pelvis
• Ureter

Question 5

whats the role of the nephrons

Answer 5

fine tiny structures which carry out filtration and reabsorption

Question 6

whats the cortex

Answer 6

the outer layer full of the nephrons filtration parts

Question 7

whats the medulla

Answer 7

the inner layer of the kidneys which contains tubes which carry waste products to the pelvis of the kidney- they contain the loop of Henle and duct parts of the nephrons

Question 8

what is the function of nephrons?

Answer 8

• to filter the blood
• take the blood to the glomerulus

Question 9

what are the glomerulus

Answer 9

branched knot of capillaries which forces fluid out of due to the water pressure

Question 10

blood enters the glomerulus via ________ arteries

Answer 10

afferent