gastric groove — a groove or canal through the reticulum, omasum, and abomasum of a ruminant, analogous to the gastric canal of humans. It is subdivided into the reticular, omasal, and abomasal grooves … Medical dictionary
carapace grooves — (Order Decapoda): (a) antennal. Extending posteriorly from vicinity of antennal spine. (b) branchiocardiac. Oblique groove approximately in middle of posterior half on each side of carapace, separating branchial and cardiac regions and reaching… … Crustacea glossary
endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… … Universalium
cervical groove — See: carapace groove (c) [Martin, 2005]. A groove or series of grooves sometimes present on the carapace; it is mesially transverse, laterally oblique, and separates the gatric and hepatic regions from the cardiac and branchial regions [Chace and … Crustacea glossary
cetacean — cetaceous, adj. /si tay sheuhn/, adj. 1. belonging to the Cetacea, an order of aquatic, chiefly marine mammals, including the whales and dolphins. n. 2. a cetacean mammal. [1830 40; < NL Cetace(a) name of the order (see CET , ACEA) + AN] * * *… … Universalium
pouch — A pocket or cul de sac. SEE ALSO: fossa, recess, sac. antral p. a p. made in the antrum of the stomach of experimental animals. branchial pouches SYN: pharyngeal pouches. Broca p. SYN: puden … Medical dictionary
carapace groove — Furrow on surface of decapod, generally dorsal named types: a) antennal. Furrow on carapace extending backward from vicinity of antennal spine. b) branchiocardiac. Oblique furrow approximately in middle of posterior half of each side of carapace … Crustacea glossary
human cardiovascular system — ▪ anatomy Introduction organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the… … Universalium
Echinoderm — Temporal range: Cambrian–recent … Wikipedia
Starfish — For other uses, see Starfish (disambiguation). Asteroidea redirects here. For the Asteraceae subfamily, see Asteroideae. Sea Stars Temporal range: Ordovician–Recent … Wikipedia