Osmoregulation

Which of the following is important for creating the concentrated interstitial tissue fluid in the medulla?

• Bowman's capsule

• Proximal convoluted tubule

• Loop of Henle

• Distal convoluted tubule

ADH is a hormone involved in osmoregulation. Where is it synthesised?

• Hypothalamus

• Anterior pituitary gland

• Posterior pituitary gland

• Collecting duct

Where is ADH released into the blood?

• Hypothalamus

• Anterior pituitary gland

• Posterior pituitary gland

• Collecting duct

What are the target cells of ADH?

• Osmoreceptors

• Endothelium of blood capillary

• Basement membrane

• Epithelial cells of collecting duct

Where is the specific location of the ADH receptors?

• Luminal membrane

• Basal membrane

• Basement membrane

• Collecting duct lumen

Which of the following would cause the water potential of your blood to decrease?

• Drinking lots of water

• Eating salty food

• Cold weather

• Eating watermelon

Which of the following is the response of the wall of the collecting duct to ADH?

• More permeable to water

• Less permeable to water

• More permeable to salts

• Less permeable to urea

What type of urine would be produced if a person sweats a lot during a hot day?

• Small volume, dilute urine

• High volume, concentrated urine

• Small volume, concentrated urine

• High volume, dilute urine

How much water would be reabsorbed from the collecting duct back into the blood if a person sweats a lot during a hot day?

• A lot

• A little

• None

• Moderate

What are aquaporins?

• Carrier proteins

• Co-transporter

• Channel proteins

• Pumps