| brachialgia | Pain in the arm. Origin: L. Brachium, arm, + algos, pain Brachialgia statica paresthetica, pain in the arm and transient paresthesia occurring only at night. (05 Mar 2000) |
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| brachialis | <anatomy, muscle> Origin, lower two-thirds of anterior surface of humerus; insertion, coronoid process of ulna; action, flexes elbow; nerve supply, musculocutaneous, usually with a minor contribution from the radial. Synonym: musculus brachialis, brachial muscle. (05 Mar 2000) |
| brachiata | <zoology> A division of the Crinoidea, including those furnished with long jointed arms. See Crinoidea. See: Brachiate. Source: Websters Dictionary (01 Mar 1998) |
| brachiate | <botany> Having branches in pairs, decussated, all nearly horizontal, and each pair at right angles with the next, as in the maple and lilac. Origin: L. Brachiatus (bracch-) with boughs or branches like arms, from brackium (bracch-) arm. Source: Websters Dictionary (01 Mar 1998) |
| brachio- | Synonym: arm. Synonym: radial. Origin: L. Brachium (05 Mar 2000) |
| brachiocephalic | Relating to both arm and head. (05 Mar 2000) |
| brachiocephalic arteritis | Giant-cell arteritis seen in older adults; characterised by inflammatory lesions in medium sized arteries, most commonly in the head, neck and/or shoulder girdle area; lesions include fragmented elastin, macrophages, and giant cells. Erythrocyte sedimentation rate is usually markedly elevated. Visual loss can occur. (05 Mar 2000) |
| brachiocephalic muscle | In animals, a compound muscle passing from the brachium or humerus to the head and the dorsal cervical raphe; the clavicular insertion or clavicle subdivides the muscle. Synonym: brachiocephalic muscle. (05 Mar 2000) |
| brachiocephalic trunk | The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm. (12 Dec 1998) |
| brachiocephalic veins | Large veins on either side of the root of the neck formed by the junction of the internal jugular and subclavian veins. They drain blood from the head, neck, and upper extremities, and unite to form the superior vena cava. (12 Dec 1998) |
| brachiocrural | Relating to both arm and thigh. (05 Mar 2000) |
| brachiocubital | Relating to both arm and elbow or to both arm and forearm. (05 Mar 2000) |
| brachioganoidei | <zoology> An order of ganoid fishes of which the bichir of Africa is a living example. See Crossopterygii. Origin: NL, from L. Brachium (bracch-) arm + NL. Ganoidei. Source: Websters Dictionary (01 Mar 1998) |
| brachiogram | Tracing of the brachial artery pulse. (05 Mar 2000) |
| brachiopod | A phylum of invertebrate animals often grouped with two other phyla under the name Lophophorates. General characteristics include: a pair of protective shells (giving them a superficial resemblance to the bivalves - i.e. Clams), a stalk protruding from the rear called a pedicle which anchors the animal to the sea floor, and a lophophore (a ridge with many tiny tentacles on it, used to catch food particles floating by). Brachiopod shells come in many different shapes and sizes. Brachiopods were extremely abundant during the Paleozoic era (both in terms of numbers of individuals and numbers of species), but were practically wiped out around 300 million years ago during the Permian mass extinction.Compare gastropod (09 Oct 1997) |