dendrites
The functional and structural unit of the nervous system for fast communication are called neurons. A neuron is made of cell body with extensions which are the axons and dendrites that carry impulses.
The end of one neuron, the presynaptic button, sends messages to other cells by releasing neurotransmitters (chemical messengers) into the synaptic cleft (a small space between two neurons). The other cell, whether it be a neuron, a muscle, a sweat gland, etc., will receive this message at the post synaptic membrane of its cell, and will respond accordingly.
An axon is a long, slender projection of a neuron that conducts electrical impulses away from the cell body to communicate with other cells. Its main job is to transmit these signals to other neurons, muscle cells, or glands in the body.
The dendrites are the "input" portion of the neuron, collecting signals from other neurons. However, the axon is the "output" portion of the neuron, sending signals to other neurons.
No, a neuron typically has only one axon which carries nerve impulses away from the cell body. However, certain types of neurons, such as those in invertebrates, can have multiple axon-like processes known as neurites that function in a similar way to axons.
The axons.
axon
Axon.
Remember: Axons away, so dendrites carry messages from the cell, and axons carry them away.
axon
The message travels through the axon and Schwann cells (which make up the axon) as an electrical message. When it reaches the dendrite, it is converted into a chemical message where it can be picked up by another neuron.
Axons carry messages (action potentials) away from the cell body to other neurons, muscles, or glands. They transmit information from one neuron to another, enabling communication within the nervous system.
The functional and structural unit of the nervous system for fast communication are called neurons. A neuron is made of cell body with extensions which are the axons and dendrites that carry impulses.
axons
Efferent neuron
the axon
it helps to speed up the process of transmitting messages between neurons.