haemal arch

(redirected from Haemal spine)
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Related to Haemal spine: neural spine
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  • noun

Synonyms for haemal arch

a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels


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References in periodicals archive ?
flavidus, we hypothesize that it fuses with the tip of the haemal spine of the second preural centrum.
The first caudal vertebra is that with the haemal spine supporting the first anal-fin ray.
0 mm; neural and haemal spines on the first preural centrum and procurrent caudal-fin rays were ossified.
1 and 3), appear to be uniquely derived homologous characters that may serve to distinguish Apolemichthys from related genera: namely, lateral expansion of the anterior 2-5 haemal spines (unmodified in C.
Secondary effects include a reduction in size of vertebrae 18 and 19, and a bend and thickening of the neural and haemal spines on vertebra 19.