Nervous tissue is made of two general cell types. Neurons, the conducting cell type, transmit nerve messages and Glial cells, the non-conducting cell type, serve as support cells and help to protect the neurons.The neuron is the cell that receives and sends the messages received from chemical reactions. Humans have approximately 100 billion neurons in their brain alone. All neurons have three parts. Dendrites receive information from another cell and trasnport the message to the cell body. The cell body, or soma contains the organelles typical of eukaryotic cells and the axon conducts messages away from the cell body, acting as a transport for the message.

The junction between a nerve cell and another cell is called a synapse. Messages travel within the neuron as an electrical action potential. The space between two cells is known as the synaptic cleft.To cross the synaptic cleft requires the actions of neurotransmitters, stored in small synaptic vesicles clustered at the tip of the axon.

Nervous tissue is made of two general cell types. Neurons, the conducting cell type, transmit nerve messages and Glial cells, the non-conducting cell type, serve as support cells and help to protect the neurons.The neuron is the cell that receives and sends the messages received from chemical reactions. Humans have approximately 100 billion neurons in their brain alone. All neurons have three parts. Dendrites receive information from another cell and trasnport the message to the cell body. The cell body, or soma contains the organelles typical of eukaryotic cells and the axon conducts messages away from the cell body, acting as a transport for the message.