How many types of nervous tissue are there?
Nervous tissue is composed of neurons and supporting cells called neuroglia, or ” glial cells.” There are six types of neuroglia. Four are found in the central nervous system, while two are found in the peripheral nervous system.
What is nervous tissue and its types?
Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. … These cells have three principal parts: the dendrites, the cell body, and one axon. The main part of the cell, the part that carries on the general functions, is the cell body.
Why is nervous tissue unique?
Our nervous tissue allows us to experience stimuli and then make a response. … Neurons are highly specialized nerve cells that generate and conduct nerve impulses. Dendrites are responsible for responding to stimuli; they receive incoming signals towards the cell body.
What are the four characteristics of the nervous system?
The characteristics of the nervous system are:
- It is made up of numerous nerve cells.
- Nerve cells are excitable and respond to external stimuli.
- Nerve cells show conductivity by transmitting signals from one cell to the other.
- Transmission of signals is through neurotransmitters.
- The brain is the major organ.
Where nervous tissue is not found?
Tendons are the connective tissue, which join skeletal muscles to bones, hence nervous tissue is absent is them.
What is the main function of nervous system?
The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.
What are the special characteristics of nerve cells?
The distinguishing characteristic of nerve cells is their specialization for intercellular communication. This attribute is apparent in their overall morphology, in the specialization of their membranes for electrical signaling, and in the structural and functional intricacies of the synaptic contacts between them.