- b. colliculi superioris [TA] SYN: commissure of superior colliculus.
- b. conjunctivum cerebelli SYN: superior cerebellar peduncle.
- b. of inferior colliculus [TA] a fiber bundle passing from the inferior colliculus on either side of the brainstem along the lateral border of the superior colliculus to the posterior part of the thalamus where it enters the medial geniculate body. It forms part of the major ascending auditory pathway. SYN: b. colliculi inferioris [TA], b. quadrigeminum inferius, inferior quadrigeminal b..
- b. pontis SYN: middle cerebellar peduncle.
- b. of superior colliculus [TA] a band of fibers of the optic tract bypassing the lateral geniculate body to terminate in the superior colliculus and pretectal region. SYN: b. quadrigeminum superius, superior quadrigeminal b..
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bra·chi·um 'brā-kē-əm n, pl -chia -kē-ə the upper segment of the arm or forelimb extending from the shoulder to the elbow
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n. (pl. brachia)
the arm, especially the part of the arm between the shoulder and the elbow.
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bra·chi·um (braґke-əm) pl. braґchia [L., from Gr. brachiōn] 1. [TA] arm: the part of the upper limb from shoulder to elbow. 2. an armlike process or structure.Medical dictionary. 2011.