Judged: two independent readers; copy check clear.
collateral sulcus
collateral sulcus The collateral sulcus, also called the collateral fissure, is a long, deep groove on the lower tentorial surface of the brain.
The collateral sulcus, also called the collateral fissure, is a long, deep groove on the lower tentorial surface of the brain. It lies beneath the posterior and descending horns of the lateral ventricle and runs from the back end of the brain to the tip of the temporal lobe.