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单词 orbicularis
释义 orbicularis, a. (n.) Anat.|ɔːˌbɪkjʊˈlɑːrɪs|
Pl. orbiculares.
[L., = orbicular a.]
a. In full (musculus) orbicularis oris [L. ōs, ōr- mouth]. A muscle surrounding the lips that is partly responsible for moving the lips and the mouth.
1681J. Browne Compl. Treat. Muscles 31 There is also another Constrictive Muscle, which hath gotten the name of orbicularis common to the upper lip.1733G. Douglas tr. Winslow's Anat. Expos. Struct. Human Body II. x. 136 The Semi-Orbiculares are commonly looked upon as one Muscle, surrounding both Lips, from whence it is called Orbicularis.1797J. Bell Anat. Human Body (ed. 2) I. ii. i. 200 The orbicularis oris, or muscle round the mouth, is often named constrictor oris, sphincter, or osculator.1906Practitioner Dec. 726 The muscles..which..soon become implicated by the disease when cancer begins in this region [sc. the angle of the mouth] are: the orbicularis oris, risorius, buccinator, [etc.].1970Language XLVI. 315 Electromyographic data were obtained from the cricothyroid and orbicularis muscles of a female speaker of American-English.
b. In full (musculus) orbicularis palpebrarum [L. palpebra eyelid] or (now more commonly) orbicularis oculi [L. oculus eye]. A flat muscle that surrounds the orbit and occupies the upper and lower eyelids, responsible for closing the lids (voluntarily or involuntarily).
In quot. 1967 palpebræ is the gen. sing. rather than the more usual gen. pl. of palpebra.
1681J. Browne Compl. Treat. Muscles 14 There is held a Dispute whether that these two Muscles be not properly one, and that Orbicularis being so generally received; though the one doth depress, and the other..lift up..to make a perfect close over the eye.1733G. Douglas tr. Winslow's Anat. Expos. Struct. Human Body II. x. 89 The Muscles of the Palpebræ are commonly reckoned to be two, one peculiar to the upper Eye-Lid, named Levator Palpebræ Superioris; the other common to both, called Musculus Orbicularis Palpebrarum.Ibid. 91 The Supercilia..may be moved..downward by the Orbiculares.1797J. Bell Anat. Human Body (ed. 2) I. ii. i. 194 Orbicularis oculi, or palpebrarum, is a neat and regular muscle, surrounding the eye.1887J. Tomes Syst. Dental Surg. (ed. 3) 573 The spasm of the orbicularis was so great that the right eye could only be opened by great effort.1902D. J. Cunningham Text-bk. Anat. 376 The orbicularis palpebrarum (m. orbicularis oculi) is a transversely oval muscle surrounding and occupying the eyelids.1967G. M. Wyburn et al. Conc. Anat. v. 131/1 Incise the fibres of the orbicularis palpebrae and expose the tarsal plates.1968Passmore & Robson Compan. Med. Stud. I. xxi. 17/1 Paralysis of the orbicularis oculi abolishes the blinking response, so that the affected eye is totally unprotected from direct injury.
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