| 词条 | Calyx (anatomy) |
| 释义 |
Calyx is a term used in animal anatomy for some cuplike areas or structures. EtymologyLatin, from calyx (from Ancient Greek κάλυξ, case of a bud, husk"). CnidariansThe spicules containing the basal portion of the upper tentacular part of the polyp of some soft corals (also called calice). EntoproctaA body part of the Entoprocta from which tentacles arise and the mouth and anus are located.[1] EchinodermsThe body disk that is covered with a leathery tegumen containing calcareous plates (in crinoids and ophiuroids the main part of the body where the viscera are located).[2] Humans{{main|minor calyx|major calyx|Calyx of Held}}Either a minor calyx in the kidney, a conglomeration of two or three minor calyces to form a major calyx, or the Calyx of Held, a particularly large synapse in the mammalian auditory central nervous system, named by H. Held in his 1893 article Die centrale Gehörleitung,[3] due to its flower-petal-like shape.[4] InsectsIn male insects, a funnel-shaped expansion of the basal part of the vas deferens (part of the seminal duct). Also in entomology, a flattened cap of neuropile in an insect brain (a component of the corpus pedunculatum) and by certain female insects, an expansion of the oviduct into which the ovarioles open. References1. ^R.C.Brusca, G.J.Brusca. Invertebrates. Sinauer Associates, 2 ed.(2003) {{DEFAULTSORT:Calyx (anatomy)}}{{Animal-anatomy-stub}}2. ^A.R.Maggenti et al., Online Dictionary of Invertebrate Zoology, digitalcommons.unl.edu, 2005 3. ^Held, H."Die centrale Gehörleitung" Arch. Anat. Physiol. Anat. Abt, 1893 4. ^Satzler, K., L. F. Sohl, et al. (2002). "Three-dimensional reconstruction of a calyx of Held and its postsynaptic principal neuron in the medial nucleus of the trapezoid body." J Neurosci 22(24): 10567-79. 3 : Cnidarian anatomy|Echinoderm anatomy|Insect anatomy |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。