| 单词 | axon hillock |
| 释义 | > as lemmasaxon hillock axon hillock n. a cone-shaped projection which links the body of a neuron to its axon and acts as a site for the generation of nerve impulses. ΘΚΠ the world > life > the body > nervous system > substance of nervous system > [noun] > nerve cell > parts of axon1842 cell body1851 neuron1893 neurite1894 neuroplasm1894 perikaryon1897 neurofibril1898 axon hillock1899 telodendrion1899 axoplasm1900 neurofibrilla1902 cyton1910 soma1947 neurotubule1948 neurofilament1955 neurode1987 1899 L. F. Barker Nerv. Syst. & Constituent Neurones x. 111 The axone itself..is entirely free from the stainable substance of Nissl, as is also the portion of the cell body immediately adjacent, known as the axone hillock. 1934 A. Forbes in C. Murchison Handbk. Gen. Exper. Psychol. i. iii. 189 We might then conceive of the formation of the mediator in the cell body and the initiation of the motor nerve impulse at the axon hillock. 1966 Nature 3 Sept. 1102/2 The most striking electron microscopical feature of the axon hillock is the denseness of the surface... This effect is due to the close packing and alignment of neurofilaments. 1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) xix. 1088 The membrane of the axon hillock is where action potentials are initiated, and Na+ channels are plentiful there. < as lemmas |
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