Anatomy and Function
Nephron Processes
Urine Pathway
100

This outer region of the kidney contains the glomeruli and is where filtration begins.

What is the cortex?

100

This capillary network is where blood filtration begins.

What is the glomerulus?

100

These tubes transport urine from the kidneys to the bladder using peristalsis.

What are the ureters?

200

This function of the urinary system removes urea and other metabolic wastes from the blood.

What is excretion?

200

This process forces water and small solutes out of the blood into the nephron due to pressure.

What is ultrafiltration?

200

This structure collects urine from the kidney and funnels it into the ureter.

What is the renal pelvis?

300

This muscular organ stores urine until it is ready to be expelled.

What is the urinary bladder?

300

This part of the nephron reabsorbs most glucose, amino acids, and water.

What is the proximal convoluted tubule (PCT)?

300

This stage involves the movement of substances like drugs and excess ions from the blood into the nephron.

What is secretion?

500

These three processes work together to filter blood, return useful substances, and remove additional wastes to form urine and maintain homeostasis.

What are ultrafiltration, reabsorption, and secretion?