diffuse placenta

См. также в других словарях:

• diffuse placenta — noun also diffused placenta : a placenta made up of villi diffusely scattered over almost the whole surface of the chorion (as in whales, swine, and horses) …   Useful english dictionary

• placenta — placental, placentary /plas euhn ter ee, pleuh sen teuh ree/, adj. /pleuh sen teuh/, n., pl. placentas, placentae / tee/. 1. Anat., Zool. the organ in most mammals, formed in the lining of the uterus by the union of the uterine mucous membrane… …   Universalium

• Placenta — A temporary organ joining the mother and fetus, the placenta transfers oxygen and nutrients from the mother to the fetus, and permits the release of carbon dioxide and waste products from the fetus. It is roughly disk shaped, and at full term… …   Medical dictionary

• diffused placenta — noun see diffuse placenta …   Useful english dictionary

• reproductive system, animal — Introduction       any of the organ systems by which animals reproduce.       The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …   Universalium

• artiodactyl — artiodactylous, adj. /ahr tee oh dak til/, adj. 1. Zool. having an even number of toes or digits on each foot. n. 2. a hoofed, even toed mammal of the order Artiodactyla, comprising the pigs, hippopotamuses, camels, deer, giraffes, pronghorns,… …   Universalium

• animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

• 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

• childhood disease and disorder — Introduction       any illness, impairment, or abnormal condition that affects primarily infants and children i.e., those in the age span that begins with the fetus and extends through adolescence.       Childhood is a period typified by change,… …   Universalium

• parturition — /pahr too rish euhn, tyoo , choo /, n. Biol. the process of bringing forth young. [1640 50; < LL parturition (s. of parturitio) travail, equiv. to L parturit(us) (ptp. of parturire; see PARTURIENT) + ion ION] * * * I or birth or childbirth or… …   Universalium

• poison — poisoner, n. poisonless, adj. poisonlessness, n. /poy zeuhn/, n. 1. a substance with an inherent property that tends to destroy life or impair health. 2. something harmful or pernicious, as to happiness or well being: the poison of slander. 3.… …   Universalium