Nervous Tissue

Nervous tissue is a type of tissue found in the nervous system, including the brain, spinal cord, and nerves. It is made up of two main types of cells: neurons and neuroglia.

Neurons

Neurons are the primary cells of the nervous system and are responsible for transmitting electrical and chemical signals. They consist of a cell body, dendrites, and an axon.

• Cell Body: Contains the nucleus and other organelles.
• Dendrites: Branch-like extensions that receive signals from other neurons or sensory receptors.
• Axon: A long, slender projection that transmits signals to other neurons or effector cells.

Neuroglia

Neuroglia, or glial cells, provide support and protection for neurons. They also play a role in maintaining the environment around neurons and modulating their activity.

Functions of Nervous Tissue

Nervous tissue is responsible for coordinating and controlling body activities through the transmission of electrical and chemical signals. It plays a crucial role in sensory perception, motor function, and the regulation of bodily functions.

Study Guide

1. What are the two main types of cells found in nervous tissue?
2. Describe the structure and function of neurons.
3. What is the role of neuroglia in nervous tissue?
4. What are the functions of nervous tissue in the body?