| 释义 |
ˈneurotransˌmitter Physiol.
[f. neuro- + transmitter.]
A substance which is released at the end of a nerve fibre by the arrival of a nerve impulse and, by diffusing across the synapse or junction, effects the transfer of the impulse to another nerve fibre, a muscle fibre, or some other receptor.
1961Lancet 2 Sept. 530/1 In these sections appears much of the most recent work on the metabolic as well as the neurotransmitter actions of these amines. 1965Lee & Knowles Animal Hormones ix. 123 Acetylcholine is also released in the ganglia of the autonomic nerves and at the endings of the parasympathetic nerves, acting as a neurotransmitter substance. 1971New Scientist 17 June 669/1 The neurotransmitter serotonin stimulates salivation in the salivary gland of the housefly. 1974Sci. Amer. June 59/1 Neurotransmitters make the heart beat faster or slower and make muscles contract or relax. They cause glands to synthesize hormone-producing enzymes or to secrete hormones.
So neurotransˈmission, the transmission of nerve impulses.
1961Harvey Lect. LV. 43 (heading) Neurotransmission in the adrenergic nervous system. 1973Nature 15 June 426/1 Reviews on biochemical aspects of neurotransmission. |