trochlean.

/ˈtrɒkliːə/

Etymology: < Latin trochlea: compare Greek τροχιλία, -χιλέα, -χαλία sheaf of a pulley.

Anatomy.

A pulley-like structure or arrangement of parts, with a smooth surface upon which some other part, as a bone or tendon, slides.spec. (a) the surface of the inner condyle of the humerus at the elbow-joint, with which the ulna articulates; (b) the cartilaginous loop through which the superior oblique muscle of the eye passes; (c) the orifice of the metathorax in hymenopterous insects, through which the tendon of the abdomen passes.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > parts of bones > [noun] > trochlea

pulley1565

trochlea1684

1684 tr. S. Blankaart Physical Dict. 285 Trochlea, the same that Bathmis.

1826 W. Kirby & W. Spence Introd. Entomol. III. xxxvi. 701 Here the upper orifice in the trunk is the pulley (trochlea), the tendon is the rope (funiculus), and the abdomen is the weight to be lifted.

1842 R. Dunglison Med. Lexicon (ed. 3) Trochlea, the articular surface at the lower extremity of the os humeri; so called from its forming a kind of pulley on which the ulna moves... Also, the cartilaginous pulley, over which the tendon of the trochlearis muscle passes, at the upper and inner part of the orbit.

1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 224 The distal end of the tibia forms a transverse pulley or trochlea.

This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2021).

单词	trochlea
释义	trochlean. /ˈtrɒkliːə/ Etymology: < Latin trochlea: compare Greek τροχιλία, -χιλέα, -χαλία sheaf of a pulley. Anatomy. A pulley-like structure or arrangement of parts, with a smooth surface upon which some other part, as a bone or tendon, slides.spec. (a) the surface of the inner condyle of the humerus at the elbow-joint, with which the ulna articulates; (b) the cartilaginous loop through which the superior oblique muscle of the eye passes; (c) the orifice of the metathorax in hymenopterous insects, through which the tendon of the abdomen passes. ΘΚΠ the world > life > the body > structural parts > bone or bones > parts of bones > [noun] > trochlea pulley1565 trochlea1684 1684 tr. S. Blankaart Physical Dict. 285 Trochlea, the same that Bathmis. 1826 W. Kirby & W. Spence Introd. Entomol. III. xxxvi. 701 Here the upper orifice in the trunk is the pulley (trochlea), the tendon is the rope (funiculus), and the abdomen is the weight to be lifted. 1842 R. Dunglison Med. Lexicon (ed. 3) Trochlea, the articular surface at the lower extremity of the os humeri; so called from its forming a kind of pulley on which the ulna moves... Also, the cartilaginous pulley, over which the tendon of the trochlearis muscle passes, at the upper and inner part of the orbit. 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 224 The distal end of the tibia forms a transverse pulley or trochlea. This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2021). < n.1684
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