Nervous system wikipedia 相關
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4 天前 · A nervous system emerges from the assemblage of neurons that are connected to each other in neural circuits, and networks. The vertebrate nervous system can be split into two parts: the central nervous system (defined as the brain and spinal cord), and the .
2 天前 · The brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum , the brainstem and the cerebellum . It controls most of the activities of the body , processing, integrating, and coordinating the information it receives from the sense organs , and ...
- Encephalon
- Central nervous system
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2 天前 · Major neurotransmitter systems include the noradrenaline (norepinephrine) system, the dopamine system, the serotonin system, and the cholinergic system, among others. Trace amines have a modulatory effect on neurotransmission in monoamine pathways (i.e., dopamine, norepinephrine, and serotonin pathways) throughout the brain via ...
2024年4月12日 · In humans, the nervous system is composed of the central and peripheral nervous system, with little known about the specific mechanisms of neurotransmitters in most other vertebrates. However, it is known that while serotonin is involved in stress and behavioral responses, it is also important in cognitive functions . [147]
- 5-HT, 5-Hydroxytryptamine, Enteramine, Thrombocytin, 3-(β-Aminoethyl)-5-hydroxyindole, Thrombotonin
- MAO
- system-wide
2024年4月12日 · In the phenomenon of phantom limb sensation, a person continues to feel pain or sensation within a part of their body that has been amputated.This is strangely common, occurring in 60–80% of amputees. [67] An explanation for this is based on the concept of neuroplasticity, as the cortical maps of the removed limbs are believed to have become engaged with the area around them in the ...
5 天前 · Stimulants (also known as central nervous system stimulants, or psychostimulants, or colloquially as uppers) are a class of drugs that increase the activity of the brain and the spinal cord. They are used for various purposes, such as enhancing alertness, attention, motivation, cognition, mood, and physical performance.
