| 释义 |
‖ humerus Anat.|ˈhjuːmərəs|
Pl. -i.
[L. (more correctly umerus) = shoulder, (rarely) upper arm.]
The bone of the upper arm, extending from the shoulder-joint to the elbow-joint; the homogenetic bone in other vertebrates.
[1578Banister Hist. Man iv. 51 b, The same bone in Latin is called Humerus, which in English is shoulder.] 1706Phillips (ed. Kersey), Humerus, the Shoulder; the Shoulder-bone or first Bone of the Arm. 1727–41Chambers Cycl. s.v., At the lower end of the humerus are two processes, covered each with a cartilage. 1851Richardson Geol. viii. 295 Sockets for lodging the round head of the arm-bones, the humeri. 1875Blake Zool. 89 The humerus is cylindrical, longest in Pelicans.
b. Applied by Cuvier to the proscapula, by Owen to the mesocoracoid, of fishes.
1854Owen in Circle Sc., Org. Nat. I. 176 In the salmon..The radius, after expanding to unite with the humerus, the ulna, and the radial carpals, sends a long and broad process downwards and inwards.
c. The third joint of the anterior pair of legs of insects.
1826Kirby & Sp. Entomol. III. 369 Humerus, the third and elongated joint of the Brachium, answering to the Femur in the legs.
d. A corneous plate on the exterior front angle of the elytrum in Coleoptera.
1826Kirby & Sp. Entomol. III. xxxv. 619 If you carefully extract one [wing] from the stag-beetle..the first thing that will strike you, upon examining the base, will be the plate..called by Chabrier the humerus.
e. Applied by some to the anterior corner of the thorax, the ‘shoulder’, of an insect; by Walker, to the subcostal or submarginal vein of the forewing of certain Hymenoptera. (Cent. Dict.) |
