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bucca

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(bŭk′ă) pl. buccae [L., cheek] The cheek.

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buccal

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(bŭk′ăl) [L. bucca, cheek; in Romance, mouth] Pert. to the cheek or mouth. buccally (bŭk′ă-lē), adv.

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bucco-, bucc-

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[L. bucca, cheek] Prefixes meaning cheek.

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buccofacial

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(bŭk″fā′shăl) [bucco- + facial] Orofacial.

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buccopharyngeal

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(bŭk″ō-far″ĭn-jē′ăl, bŭk″ō-fă-rin″j(ē-)ăl) [bucco- + pharyngeal] Pert. to the mouth and pharynx.

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Buck, Gurdon

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(bŭk) U.S. surgeon, 1807–1877.

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B. extension A method of producing traction by applying regular or flannel-backed adhesive tape to the skin and keeping it in smooth close contact by circular bandaging of the part to which it is applied. The adhesive strips are aligned with the long axis of the arm or leg, the superior ends being about 1 in. (2.5 cm) from the fracture site. Weights sufficient to produce the required extension are fastened to the inferior end of the adhesive strips by a rope that is run over a pulley to permit free motion. SYN: Buck traction.

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B. fascia The fascial covering of the penis, derived from Colles fascia.

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B. traction Buck extension.

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Buck extension

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(bŭk) [Gurdon Buck, U.S. surgeon, 1807–1877] SEE: under Buck, Gurdon.

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Bucky, Gustav P.

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(bŭk′ē) German-born U.S. radiologist, 1880–1963.

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B. diaphragm A specialized film holder with a moving grid located immediately beneath the radiographic table or upright apparatus. It decreases the effects of scatter and secondary radiation during a radiographic exposure. SYN: Potter-Bucky diaphragm.

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B. factor A measure of the amount of radiation absorbed by the Bucky diaphragm. This indicates the amount by which to increase the technical factors when a grid is being used.

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bud

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1. In anatomy, a small structure resembling a bud on a plant. 2. In embryology, a small protuberance or outgrowth that is the anlage or primordium of an organ or structure.

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end b. Tail b.

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limb b. In the embryo, a clump of cells that is the precursor of one of the four limbs.

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lung b. In the embryo, a pouch that grows out of each side of the developing foregut tube beginning at day 26. It pushes into the primitive pleural coeloms and continues to elongate and branch to become the embryonic lung.

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tail b. In an embryo, a rapidly proliferating mass of cells at the caudal extremity. SYN: end bud.

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taste b. Any of the primary sensory cells that are found mainly on the margins and the back of the ...

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