frontal sulcus

n.

A sagittal fissure on the outer surface of each frontal lobe of the cerebrum, demarcating the middle from the inferior frontal gyrus; inferior frontal sulcus.
A sagittal fissure dividing the middle frontal gyrus into an upper and lower part; middle frontal sulcus.
A sagittal fissure on the superior surface of each frontal lobe of the cerebrum, forming the lateral boundary of the superior frontal gyrus; superior frontal sulcus.

Nearby words

  1. frontal lobe,
  2. frontal nerve,
  3. frontal plane,
  4. frontal pole,
  5. frontal sinus,
  6. frontal suture,
  7. frontalis,
  8. frontality,
  9. frontally,
  10. frontenac


The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.