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sphincter at biology dictionary

Sphincter

.... C. V. Mosby ... Full article >>> sphincter (sfink-ter) [Gk. sphinkter, a band ] A ringlike ...ike a drawstring. Full article >>> sphincter A ringlike band of muscle fibers that constricts a passage or closes a natural orifice. spice A...

Spermatogenesis

...production of mature sperm cells in the testis. sphincter ... Full article >>> spermatogenesis Formation and maturation of sperm atozoa. sperm atogonium Precursor of mature male reproductive cell ; gives rise directly to a sperm atocyte. Full article >>> spermatogenesis...

Sperm

...oduction of mature sperm cells in the testis. sphincter ... Full article >>> sperm atium Minute, nonmotile male gametes that occur in the rust fungi . sperm atocyte A growth stage of a male reproductive cell ; gives rise to a sperm atid . Full article >>> sperm ati...

Pyloric sphincter

pyloric sphincter The ring of muscle at the junction of the stom...CTURE ... Full article >>> pyloric sphincter A ring of smooth muscle surrounding the opening of the pyloric portion of the stomach into the...

Mouth

...which includes the antrum and pylorus and pyloric sphincter . Full article >>> Mouth Parts These contain the proboscis with which the bee feeds on liquid food, either the nectar of flower s or the honey stored within the hive. Full article >>> mouth -- Front opening of the...

Chyme

...opel the acid- chyme mixture against the pyloric sphincter . Full article >>> The first section of the small intestine , where acid chyme from the stomach mixes with digestive juices from the pancreas , liver , gallbladder, and gland cells of the intestinal wall. duplication ... Fu...

Buccal cavity

...which includes the antrum and pylorus and pyloric sphincter . Full article >>> stomochord Anterior evagination of the dorsal wall of the buccal cavity into the proboscis of hemi chordates ; the buccal diverticulum. stony corals Anthozoans, often colon ial, that secrete a calcareous skel...
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(Date:7/25/2008)...back-up in esophagus can cause immune system chang...-- The first evidence linking gastroesophageal ref...by Duke University Medical Center researchers. ,...rst noted in the 1970s, and since then studies hav...asthma patients also experience GERD symptoms. But...
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