Neurons:
Neurons are the cells in the nervous system. The main function is to send important information to other cells in the body. Our brains have at least 100 million to 100 billion neurons. One neuron consists of a cell body, dendrites, and an axon. The cytoplasm and nucleus are inside of the cell body. The axon and the dendrites branch away from the cell body. The axon's smaller branches end at nerve terminals. Dendrites are constantly receiving "messages" from other neurons. The points at which both neurons communicate from is called a synapse. Impulses are transmitted when neurons receive or send messages. A myelin sheath is a covering for the axons. Glia makes up the myelin sheath. There are more glia in the brain than neurons.
Neurons are the cells in the nervous system. The main function is to send important information to other cells in the body. Our brains have at least 100 million to 100 billion neurons. One neuron consists of a cell body, dendrites, and an axon. The cytoplasm and nucleus are inside of the cell body. The axon and the dendrites branch away from the cell body. The axon's smaller branches end at nerve terminals. Dendrites are constantly receiving "messages" from other neurons. The points at which both neurons communicate from is called a synapse. Impulses are transmitted when neurons receive or send messages. A myelin sheath is a covering for the axons. Glia makes up the myelin sheath. There are more glia in the brain than neurons.
References:
- www.brainfacts.org