Formation Of Glomerular Filtrate

Question 1

What is the process called to how glomerular filtration is formed?

Answer 1

Ultrafiltration

Question 2

Describe the process of how glomerular filtrate is formed

Answer 2

• blood enters thru renal artery
• which enters lots of arterioles that all enter the bowmans capsule
• the afferent arteriole entering capsule is wider than the efferent arteriole exiting
• causing a high hydrostatic pressure in glomerulus within capsule
• therefore causing water, glucose, urea and mineral ions being forced out of the fenestrations in capillaries + podocytes
• however blood cells and plasma proteins cannot pass thru as theyre too big, so remain in capillaries
• to form glomerular filtrate
• which then moves to PCT where most of it is reabsorbed back into blood

Question 3

What can and cannot pass through fenestrations in glomerulus and why?

Answer 3

• filtrate can pass thru capillaries thru connective tissue and branches of podocytes
• however blood cells and plasma proteins cannot pass thru as theyre too big, so remain in capillaries