Nervous Tissue

Nervous tissue is a type of tissue found in the nervous system, which is responsible for transmitting and receiving signals throughout the body. 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 have a cell body, dendrites, and an axon. The cell body contains the nucleus and other organelles, while the dendrites receive signals from other neurons. The axon is responsible for transmitting signals to other neurons or to other cells in the body.

Neuroglia

Neuroglia, also known as glial cells, are support cells for neurons. They provide physical support, insulation, and nutrients for neurons. There are several types of neuroglia, including astrocytes, oligodendrocytes, microglia, and ependymal cells, each with its own specific functions in supporting and protecting neurons.

Functions of Nervous Tissue

Nervous tissue is responsible for carrying out the functions of the nervous system, including sensory input, integration of data, and motor output. It allows us to perceive and respond to the environment, coordinate bodily functions, and regulate homeostasis.

Study Guide

1. Explain the structure and function of neurons.
2. Describe the roles of different types of neuroglia in supporting and protecting neurons.
3. Discuss the functions of nervous tissue in the nervous system.
4. Compare and contrast the functions of nervous tissue with other types of tissues in the body.
5. Explain how nervous tissue is involved in sensory perception, integration of information, and motor output.

By understanding the structure and function of nervous tissue, you can better comprehend how the nervous system works and its role in maintaining homeostasis in the body.