visceral+cavity
61animal 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 …
62human 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… …
63branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery …
64Mollusca — Temporal range: Cambrian–Recent …
65mollusk — molluskan, molluscan /meuh lus keuhn/, adj., n. mollusklike, adj. /mol euhsk/, n. any invertebrate of the phylum Mollusca, typically having a calcareous shell of one, two, or more pieces that wholly or partly enclose the soft, unsegmented body,… …
66respiration, human — ▪ physiology Introduction the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… …
67muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …
68Pleura — The thin covering that protects and cushions the lungs. The pleura is made up of two layers of tissue that are separated by a small amount of fluid. * * * The serous membrane enveloping the lungs and lining the walls of the pleural cavity. SYN:… …
69nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …
70Peritoneum — The membrane that lines the abdominal cavity and covers most of the abdominal organs. (From the Greek peri meaning around + tonos meaning a stretching = a stretching around). * * * The serous sac, consisting of mesothelium and a thin layer of… …
