Neurons relay messages by accepting inputs at the dendrite and cell body, passing waves of electrochemical activity down the axon, and releasing chemical neurotransmitters from the axon to the next neuron at the synapse.

Neurons relay messages by accepting inputs at the dendrite and cell body, passing waves of electrochemical activity down the axon, and releasing chemical neurotransmitters from the axon to the next neuron at the synapse.

The illustrations of Santiago Ramón y Cajal, the father of modern neuroscience, are featured in the new book “The Beautiful Brain.” This image is a reconstruction of a dendrite (red) and its axons (multicolored) in the outer part of a mouse’s brain. The dendrite has little knobby spines that stick out and receive chemical messages passed from another neuron’s axon across the synapse, or gap between them, via the tiny white sacs called vesicles.

The illustrations of Santiago Ramón y Cajal, the father of modern neuroscience, are featured in the new book “The Beautiful Brain.” This image is a reconstruction of a dendrite (red) and its axons (multicolored) in the outer part of a mouse’s brain. The dendrite has little knobby spines that stick out and receive chemical messages passed from another neuron’s axon across the synapse, or gap between them, via the tiny white sacs called vesicles.

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Figure 5.1. Electrical and chemical synapses differ fundamentally in their transmission mechanisms.
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Chemical synapse - Wikipedia, the free encyclopedia

Chemical synapse - Wikipedia, the free encyclopedia

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The word synapse comes from synaptein which Sir Charles Scott Sherrington and colleagues coined from the Greek syn- (together) and haptein (to clasp). In the nervous system a synapse is a structure that permits a neuron to pass an electrical or chemical signal to another cell (neural or otherwise). Synapses are essential to neuronal function: neurons are cells that are specialized to pass signals to individual target cells and synapses are the means by which they do so. There are two…

The word synapse comes from synaptein which Sir Charles Scott Sherrington and colleagues coined from the Greek syn- (together) and haptein (to clasp). In the nervous system a synapse is a structure that permits a neuron to pass an electrical or chemical signal to another cell (neural or otherwise). Synapses are essential to neuronal function: neurons are cells that are specialized to pass signals to individual target cells and synapses are the means by which they do so. There are two…

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