Lobes of the kidney

Definition

The lobes of the kidney are structural and functional units that include a renal pyramid, its overlying cortex, and adjacent tissue. These lobes play a crucial role in the filtration and excretion process within the kidney.

5 Must Know Facts For Your Next Test

1. Each human kidney typically contains 8 to 18 lobes.
2. Lobes are composed of nephrons, the basic functional units responsible for urine formation.
3. The cortex of each lobe contains blood vessels and convoluted tubules that filter blood.
4. Renal pyramids in each lobe contain collecting ducts which transport urine to the renal pelvis.
5. Kidney lobes contribute to maintaining body fluid balance by regulating water and electrolyte levels.

Review Questions

Related terms

Nephron: The basic structural and functional unit of the kidney responsible for filtering blood and forming urine.

Renal Pyramid: Cone-shaped tissues within the kidney that contain collecting ducts transporting urine toward the renal pelvis.

Cortex: The outer part of each kidney lobe containing blood vessels and convoluted tubules involved in filtering blood.