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...