- hemal spine
- a ventral projection from the hemal arch, which is attached to the underside of certain vertebral centra in lower vertebrates.
Medical dictionary. 2011.
hemal spine
Look at other dictionaries:
hemal spine — haemal spine … Dictionary of ichthyology
hemal arch — noun a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels • Syn: ↑haemal arch • Hypernyms: ↑arch • Part Holonyms: ↑centrum * * * noun : a bony or cartilaginous arch extending ventrally from the spinal… … Useful english dictionary
Spine — 1) The column of bone known as the vertebral column, which surrounds and protects the spinal cord. The spine can be categorized according to level of the body: i.e., cervical spine (neck), thoracic spine (upper and middle back), and lumbar spine… … Medical dictionary
hemapophysis — he·ma·poph·y·sis (he″mə pofґə sis) [hem + apophysis] a costal cartilage regarded as an apophysis of the hemal spine … Medical dictionary
hypapophysis — |hip, |hīp+ noun (plural hypapophyses) Etymology: New Latin, from hypo + apophysis : a ventral process or element of a vertebra: as a. : a hemal spine b … Useful english dictionary
Starfish — For other uses, see Starfish (disambiguation). Asteroidea redirects here. For the Asteraceae subfamily, see Asteroideae. Sea Stars Temporal range: Ordovician–Recent … Wikipedia
echinoderm — /i kuy neuh derrm , ek euh neuh /, n. any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea … Universalium
skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… … Universalium
Interhaemal — Interhemal In ter*he mal, Interhaemal In ter*h[ae] mal, a. (Anat.) Between the hemal arches or hemal spines. n. An interhemal spine or cartilage. [1913 Webster] … The Collaborative International Dictionary of English
Interhemal — In ter*he mal, Interhaemal In ter*h[ae] mal, a. (Anat.) Between the hemal arches or hemal spines. n. An interhemal spine or cartilage. [1913 Webster] … The Collaborative International Dictionary of English
