| 释义 |
‖ truncus|ˈtrʌŋkəs|
[L.: see trunk.]
a. Anat. The trunk or main stem of a vessel or nerve.
b. Zool. The trunk or body of an animal, without the head, limbs, and tail; in Entom. the thorax.
c. Bot. The trunk or stem of a tree.
1693tr. Blancard's Phys. Dict. (ed. 2), Truncus, in general..that part of the great Artery and Vena Cava, which descends from the Heart..more especially..those Branches which are sent from the great Trunk to the Viscera. 1706Phillips (ed. Kersey), Truncus, (Lat.) the Stem or Stock of a Tree without the Boughs; a Body without a Head. 1875Huxley & Martin Elem. Biol. (1883) 177 As the truncus becomes more and more distended, the longitudinal valve..tends more and more completely to shut off the openings of the pulmonary arteries. |