adverb. Toward the tail or posterior end of the body; caudally.

Toward the tail; backward in the long axis of the body; in the opposite direction from cephalad.

adverb. Backwards; toward the tail or posterior part.

adverb. backwards; toward the tail or posterior part

adverb. towards the feet (only in humans)

"Figure 4H is seventy-nine sections posterior to the last, and passes through the foregut, _ent_, just cephalad to the anterior intestinal portal and caudad to the heart."