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Kidney Function Quiz

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Questions and Answers

What is the function of the ENaC transporter in the nephron?

Reabsorbing sodium (correct)

Filtering waste products

Regulating urine flow

Stimulating RBC production

Where does most reabsorption of water occur in the kidney?

Renal corpuscle

Distal tubule

Collecting duct (correct)

Proximal tubule

What happens when the bladder stretches?

Reabsorption of water increases

Blood pressure decreases

Proteins are filtered out

Urination is initiated (correct)

What is the main role of the renal corpuscle in the kidney?

Filtration of blood Signup and view all the answers

Which process contributes to the regulation of blood pressure in the nephron?

Autoregulation Signup and view all the answers

What is the main function of the afferent arteriole in the kidney nephron?

Constriction to regulate glomerular filtration rate (GFR) Signup and view all the answers

What is the significance of the negative charge around the fenestrations of the glomerular capillaries?

It repels proteins from passing through into the Bowman's capsule Signup and view all the answers

Where does the fine tuning of reabsorption occur in the nephron?

Distal tubule Signup and view all the answers

What is the significance of the transport maximum (Tm) in the nephron?

It represents the fastest rate at which a substance can be reabsorbed Signup and view all the answers

What occurs when the osmolarity of the filtrate is higher than normal in the nephron?

The osmoreceptors signal for increased water reabsorption Signup and view all the answers