Nephrons

Question 1

What is a nephron?

Answer 1

• responsible for forming urine which then passes down the ureters to the bladder for storage.

Question 2

What happens when the bladder is full?

Answer 2

• When full, the sphincter muscle at the base of the bladder opens, allowing urine to flow out of the body via the urethra

Question 3

How is the renal vein different to the renal artery?

Answer 3

• It has a much reduced urea concentration
• it has almost the same concentration of glucose and amino acids
• a restored ion balance