tentorial basal branch of internal carotid artery

ten·tor·i·al ba·sal branch of in·ter·nal ca·rot·id ar·ter·y

(ten-tōr'ē-al bā'săl branch in-tĕr'năl kă-rot'id ahr'tĕr-ē)
A small branch from the cavernous part of the internal carotid artery to the base of the tentorium.