| bruch membrane | The membrane, also called the lamina basalis choroideae, that acts as a support structure on the inner side of the choroid (the vascular sheet that supplies the retinal pigment epithelium and the outer portion of the sensory retina adjacent to it). It is 7 microns thick and is composed of the basement membranes of the choriocapillaris endothelium and the retinal pigment epithelium. The membrane stops at the optic nerve, as does the retinal pigment epithelium. (12 Dec 1998) |
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| Bruch's glands | Lymph nodes in the palpebral conjunctiva. Synonym: trachoma glands. (05 Mar 2000) |
| Bruch's membrane | The transparent, nearly structureless inner layer of the choroid in contact with the pigmented layer of the retina. Synonym: basal lamina of choroid, basal layer of choroid, Bruch's membrane, Henle's membrane, lamina vitrea, vitreous lamella, vitreous membrane. (05 Mar 2000) |
| Bruch, Carl | <person> German anatomist, 1819-1884. See: Bruch's glands, Bruch's membrane. (05 Mar 2000) |
| brucine | <chemistry> A poweful vegetable alkaloid, found, associated with strychnine, in the seeds of different species of Strychnos, especially in the Nux vomica. It is less powerful than strychnine. Synonym: brucia and brucina. Origin: Cf. F. Brucine, fr. James Bruce, a Scottish traveler. Source: Websters Dictionary (01 Mar 1998) |
| brucite | <chemical> A white, pearly mineral, occurring thin and foliated, like talc, and also fibrous; a native magnesium hydrate. The mineral chondrodite. Origin: Named after Dr. A.Bruce of New York. Source: Websters Dictionary (01 Mar 1998) |
| Bruck's disease | A disease marked by osteogenesis imperfecta, ankylosis of the joints, and muscular atrophy. (05 Mar 2000) |
| Bruck, Alfred | <person> German physician, *1865. See: Bruck's disease. (05 Mar 2000) |
| Brucke's muscle | <anatomy> The part of the ciliary muscle formed by the meridional fibres. Synonym: Crampton's muscle. (05 Mar 2000) |
| Brucke's tunic | <anatomy> An older term, formerly used to designate the retina exclusive of the layer of rods and cones. Synonym: Brucke's tunic. (05 Mar 2000) |
| Brucke, Ernst von | <person> Austrian physiologist, 1819-1892. See: Brucke's muscle, Brucke's tunic, Brucke-Bartley phenomenon. (05 Mar 2000) |
| Brucke-Bartley phenomenon | The sensation of glare in response to successive stimuli at frequencies just below the fusion point. (05 Mar 2000) |
| Brudzinski's sign | <clinical sign> A physical examination finding that can indicate inflammation of the meninges (meningitis), performed in two forms: passive flexion of one leg results in a similar movement on the opposite side or if the neck is passively flexed, flexion occurs in the legs. (27 Sep 1997) |
| Brudzinski, Josef von | <person> Polish physician, 1874-1917. See: Brudzinski's sign. (05 Mar 2000) |
| Brug's filariasis | Infection with filarial organism Brugia malayi, which causes adenitis, fever, lymphangitis, and sometimes elephantiasis; occurs primarily in southeast Asia, India, Indonesia, China, Japan, Korea, and the Philippines. (05 Mar 2000) |