🔬general biology i review

Cortical

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

Cortical refers to the outer layer of an organ or structure. In kidneys, it pertains to the outer portion where filtration of blood occurs, known as the renal cortex.

5 Must Know Facts For Your Next Test

  1. The renal cortex contains the glomeruli and Bowman's capsules, which are essential for blood filtration.
  2. Cortical nephrons, located mainly in the renal cortex, make up about 85% of all nephrons in the kidney.
  3. Cortical structures are crucial for osmoregulation as they initiate the process of urine formation.
  4. The renal cortex receives a large proportion of blood flow compared to other parts of the kidney due to its filtering role.
  5. Damage to cortical structures can lead to impaired kidney function and reduced efficiency in waste excretion.
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