神经元通过神经冲动或动作电位传递信息。在神经元树突处接收神经冲动,穿过细胞体,并沿着轴突携带到末端分支。虽然神经元靠近在一起,但它们实际上并没有接触,而是被称为突触间隙的间隙隔开。信号通过称为神经递质的化学信使从突触前神经元传递到突触后神经元。一个神经元可以在突触处与数千个其他细胞建立连接,从而创建一个巨大的神经网络。在侧向抑制中,一些神经元比其他神经元受到更大程度的刺激。高度刺激的神经元(主要神经元)沿特定路径向神经元释放兴奋性神经递质。同时,高度刺激的主要神经元激活大脑中的中间神经元,抑制侧向定位细胞的激发。中间神经元是促进中枢神经系统与运动或感觉神经元之间的通信的神经细胞。这种活动在各种刺激之间产生更大的对比,并且更加注重生动的刺激。侧向抑制发生在身体的感觉系统中,包括嗅觉,视觉,触觉和听觉系统。

澳大利亚医学Essay代写:神经递质

Neurons transmit information through nerve impulses or action potentials. A nerve impulse is received at the neuronal dendrites, across the cell body, and carried along the axons to the terminal branches. Although the neurons are close together, they are not actually in contact, but are separated by a gap called a synaptic gap. Signals are transmitted from presynaptic neurons to postsynaptic neurons by chemical messengers called neurotransmitters. A neuron can connect to thousands of other cells at the synapse, creating a huge neural network. In lateral inhibition, some neurons are more stimulated than other neurons. Highly stimulating neurons (major neurons) release excitatory neurotransmitters to neurons along specific pathways. At the same time, highly stimulating major neurons activate interneurons in the brain and inhibit the excitation of laterally located cells. Interneurons are nerve cells that promote communication between the central nervous system and motor or sensory neurons. This activity creates a greater contrast between the various stimuli and a greater focus on vivid stimuli. Lateral inhibition occurs in the body’s sensory system, including the olfactory, visual, tactile, and auditory systems.

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