Excretory System

Question 1

List the stages of the excretory system…

Answer 1

• kidneys = filtration
• ureters = urine from kidneys to the bladder
• bladder = stores urine
• urethra = urine from the bladder to outside

Question 2

What is the main purpose and function of the kidneys?

Answer 2

• water homeostasis
• regulation of blood pressure
• production of erythropoietin
• production of Vitamin D
• the kidneys are also part of the urinary system

Question 3

Where is erythropoietin produced?

Answer 3

produced by medullary interstitial cells in response to hypoxia (low oxygen).

Question 4

Explain what would happen if the kidneys do not function properly.

Answer 4

Harmful toxins will build up in the animals body which in turn will make the animal ill. Vomiting, lethargy and anorexia are a few signs that the kidneys are not functioning properly.

Question 5

What are the kidneys controlled by?

Answer 5

ADH - Anti diuretic hormone