| 释义 |
opponens, a. Anat.|əˈpəʊnənz|
[L., pr. pple. of opponere to set against.]
Used, ellipt. as n. (L. musculus being usu. omitted), in the names of four pairs of small muscles of the hands and feet: the opponens pollicis, which helps to draw the thumb across the palm; the opponens digiti minimi, which helps to raise the little finger when the palm is stretched out flat; the opponens digiti minimi, of the foot; and (seldom distinguished) the opponens hallucis of the foot. Cf. opponent a. 3.
1797J. Bell Anat. Bones ii. iii. 280 The opponens pollicis, is often called the metacarpal of the thumb. 1836–9R. B. Todd Cycl. Anat. & Physiol. II. 519/2 Flexor ossis metacarpi or opponens pollicis..of a rhomboidal form. Ibid. 521/1 Adductor ossis metacarpi or opponens minimi digiti. 1902D. J. Cunningham Text-bk. Anat. 329 The opponens minimi digiti..arises from the anterior annular ligament and the hook of the unciform bone. 1967G. M. Wyburn et al. Conc. Anat. ii. 68/2 The opponens..is inserted into the shaft of the 1st metacarpal bone. 1973Gray's Anat. (ed. 35) 582/2 Part of the muscle [sc. the adductor hallucis] may be attached to the first metatarsal, constituting an opponens hallucis. |