Definitions for haemal arch
This page provides all possible meanings and translations of the word haemal arch
hemal arch, haemal arch(noun)
a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels
A haemal arch is a bony arch on the underside of a tail vertebra of a vertebrate. The hole so formed is the haemal canal. It sometimes has a haemal spine on. The blood vessels to and from the tail run through the arch.
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