The DICT Development Group
2 definitions found
for Hemal arch
From The Collaborative International Dictionary of English v.0.48 :
Hemal \He"mal\, a. [Gr. a"i^ma blood.]
Relating to the blood or blood vessels; pertaining to,
situated in the region of, or on the side with, the heart and
great blood vessels; -- opposed to neural.
Note: As applied to vertebrates, hemal is the same as
ventral, the heart and great blood vessels being on the
ventral, and the central nervous system on the dorsal,
side of the vertebral column.
Hemal arch (Anat.), the ventral arch in a segment of the
spinal skeleton, formed by vertebral processes or ribs.
From WordNet (r) 3.0 (2006) :
n 1: a structure arising ventrally from a vertebral centrum and
enclosing the caudal blood vessels [syn: hemal arch,
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