ORGAN

n. O"r'g'n. Gr., opyavov (from tpyttv, to do work). Lat., organum. Fr., organe. Ger., O. Any individual part, or system of parts, of an organism, having a specific physiological function, considered with reference to its action, proce es, or results. [B, 229, 291 (a, 35); L, 343.] Absonderungso* (Ger.). A secretory o. Acce ory genital o's in the female. The mammary glands. Acce ory o's. Lat., organa acce or i a. Fr., organes acce ories (ou derives). Ger., Nebeno'e. 1. O's which have a subordinate function. O. 48.] 2. In botany, parts, such as tendrils, stipules, spines, etc., which are merely modifications of the leaf, stem, or root. [B, 121, 123 (o, 35).] Appendicular o's. 1. The limbs. [L, 294.] 2. In botany, the leaves and their modifications. [B, 104 (a, 35).] Athemo'e (Ger.), Athmungso'e (Ger.). The respiratory o's. [o, 17.] Auditory o's. See Auditory APPARATUS. Axial o's. The root and stem, and their immediate subdivisions; theaxophyte. [B, 104 (a, 35).] Begat tung so'e (Ger.). See Generative o's. Be we gung so' (Ger.). An o. of locomotion. Bidder's o. A body attached to the anterior extremity of the testicle in certain toads; regarded as a rudimentary ovary. [L, 294; J. B. Sutton, " Trans, of the Path. Soc. of Lond.," 1885 (L).] Biliary o. Ger., Galleno\ An organ that secretes or conveys bile, [a, 48.] Bruto' (Ger.). See under BRUT. Central nervous o's. Ger., Centralnervencfe. Cerebrospinal centres. [L.] Chylopoietic o's. Lat., organa chylopoetica. Ger., Chylifications or gane. The o's concerned in the chylification of the food (the stomach, liver, pancreas, spleen, and intestines). [L, 332.] Circulation so'e (Ger.), Circulatory o's. See Circulatory APPARATUS. Copulatory o's. Lat., organa copulation is. The parts concerned in copulation. [L, 332.] Corti's ches O. (Ger.). See O. of Corti. I>igestive o's. Lat., organa digestion is. Ger.,Verdauungs'"e. See Digestive APPARATUS. Enamel o. Lat., organon adam an tines. Fr., organe de Vemail. Ger., Schmelzo\ Of Purkinje, the special enamel-germ after it has become differentiated into a three-layered o, which covers the enlarged tooth papilla like a cap. The layer next the tooth papilla (enamel epithelium) is a columnar epithelium formed by the deepest layer of the invaginated oral epithelium. It ultimately forms the hard enamel. The second or intermediate layer of the enamel o. is composed of cells which have become stellate and are united by their branches to form a very loose, spongy, or gelatinous layer. It finally disappears. The third or outer layer is composed of polyedral cells which, upon the disappearance of the middle layer, are in contact with the first or enamel layer, and gives rise to the cuticula dent is. [J, 24, 30, 32, 35.] End-o. See the major list. Excretory o's. Lat., organa excretoria. Fr., organes excreteurs. Ger., Excretion so'e. The o's which dispose of the excrementitious substances of the body. [L.] Fetto' (Ger.). See PANNICULUS adiposus. Flimmero'e (Ger.). See CILIA. Fortpflanzungso' (Ger.). A reproductive o. [B, 49.] Galleiio' (Ger.). See Biliary o. Gebaro' (Ger.). See UTERUS. Gefuhlso'e (Ger.). See Tactile APPARATUS. Gehoro'e (Ger.). See Auditory APPARATUS. Gemeines Empflndungso' (Ger.). A tactile o. Generative o's, Genital o's. Fr., organes genitaux. Ger., Begat tung so^e, Zeugungso'e. The o's which are concerned in the reproduction of the species. [C.] Geruchso'e (Ger.). See Olfactory APPARATUS. Geschlechtso'e (Ger.). See Generative o'. Geschmackso'e (Ger.). See ORGANON gust us. Gesichtso'e (Ger.). The eye and its appendages. [L, 80.] Glandular o. of new formation. Fr., organe glandulaire de neo formation (ou de nouvelle formation). Ger., drusige O. Of Ercolani. the uterine mucous membrane at the site of attachment of the placenta: so called from the idea that its utricular glands secrete a fluid destined for the nutrition of the foetus. Gustatory o. See ORGANON gust us. Hafto' (Ger.). 1. An organ of prehension. [A, 521 (a, 48).] 2. In plants, a part used for attachment, [a, 35.] Harno'e (Ger.). See Urinary APPARATUS and Uropoietic o's. Hauto' (Ger.). See CUTIS. Horo' (Ger.). See EAR. Jacob son's o. A canal a few millimetres in A, ape; A, at; A*, ah; A, all; Ch, chin; Ch, loch (Scottish); [s. 170]