| biceps muscle of thigh | <anatomy, muscle> Origin, long head (caput longum) from tuberosity of ischium, short head (caput breve) from lower half of lateral lip of linea aspera; insertion, head of fibula; action, flexes knee and rotates leg laterally; nerve supply, long head, tibial, short head, peroneal. Synonym: musculus biceps femoris, biceps muscle of thigh, musculus biceps flexor cruris. (05 Mar 2000) |
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| biceps reflex | Contraction of the biceps muscle when its tendon is struck. (05 Mar 2000) |
| Bichat | Marie F.X., French anatomist, physician, and biologist, 1771-1802. See: Bichat's canal, Bichat's fat-pad, Bichat's fissure, Bichat's foramen, Bichat's fossa, Bichat's ligament, Bichat's membrane, Bichat's protuberance, Bichat's tunic. (05 Mar 2000) |
| Bichat's canal | <anatomy, vein> An expansion of the subarachnoid space extending forward between the corpus callosum and the thalamus; it encloses the internal cerebral veins which caudally join to form the vena magna cerebri (Galen's vein). Synonym: ambient cistern, Bichat's canal, Bichat's foramen, cistern of great vein of cerebrum, cisterna ambiens, cisterna superioris, cisterna venae magnae cerebri, superior cistern. (05 Mar 2000) |
| Bichat's fat-pad | An encapsuled mass of fat in the cheek on the outer side of the buccinator muscle, especially marked in the infant; supposed to strengthen and support the cheek during the act of sucking. Synonym: corpus adiposum buccae, Bichat's fat-pad, Bichat's protuberance, fat body of cheek, sucking cushion, sucking pad, suctorial pad. (05 Mar 2000) |
| Bichat's fissure | The nearly circular fissure corresponding to the medial margin of the cerebral (pallial) mantle, marking the hilus of the cerebral hemisphere, consisting of the callosomarginal fissure and choroidal fissure along the hippocampus, both of which are continuous with the stem of the fissure of Sylvius at the anterior extremity of the temporal lobe. (05 Mar 2000) |
| Bichat's foramen | <anatomy, vein> An expansion of the subarachnoid space extending forward between the corpus callosum and the thalamus; it encloses the internal cerebral veins which caudally join to form the vena magna cerebri (Galen's vein). Synonym: ambient cistern, Bichat's canal, Bichat's foramen, cistern of great vein of cerebrum, cisterna ambiens, cisterna superioris, cisterna venae magnae cerebri, superior cistern. (05 Mar 2000) |
| Bichat's fossa | Sphenomaxillary fossa, a small pyramidal space, housing the pterygopalatine ganglion, between the pterygoid process, the maxilla, and the palatine bone. Synonym: fossa pterygopalatina, Bichat's fossa, pterygomaxillary fossa, sphenomaxillary fossa. (05 Mar 2000) |
| Bichat's ligament | <anatomy> The lower fasciculus of the posterior sacroiliac ligament. (05 Mar 2000) |
| Bichat's membrane | The inner elastic membrane of arteries. (05 Mar 2000) |
| Bichat's protuberance | An encapsuled mass of fat in the cheek on the outer side of the buccinator muscle, especially marked in the infant; supposed to strengthen and support the cheek during the act of sucking. Synonym: corpus adiposum buccae, Bichat's fat-pad, Bichat's protuberance, fat body of cheek, sucking cushion, sucking pad, suctorial pad. (05 Mar 2000) |
| Bichat's tunic | The tunica intima of the blood vessels. (05 Mar 2000) |
| bichir | <zoology> A remarkable ganoid fish (Polypterus bichir) found in the Nile and other African rivers. See Brachioganoidei. Origin: Native name. Source: Websters Dictionary (01 Mar 1998) |
| bichloride | <chemistry> A compound consisting of two atoms of chlorine with one or more atoms of another element; called also dichloride. Bichloride of mercury, mercuric chloride; sometimes called corrosive sublimate. Origin: Pref. Bi- + chloride. Source: Websters Dictionary (01 Mar 1998) |
| bicho | A generally fatal disease affecting chiefly children in the tropics, characterised by gangrenous ulceration of the rectum and anus, accompanied by frequent watery stools and tenesmus. Synonym: bicho, caribi, Indian sickness. (05 Mar 2000) |