Question

explain about neural tissue class 11 # neet pls​

Answer 1

Answer:

Neural tissue is also called as the nervous tissue. This is a specialized kind of tissue in animals that puts them in the higher order of classification.

Answer 2

Answer:

Nervous or the nerve tissue is the main tissue of our nervous system. It monitors and regulates the functions of the body. Nervous tissue consists of two cells: nerve cells or neurons and glial cells, which helps transmit nerve impulses and also provides nutrients to neurons. Brain, Spinal Cord, and nerves are composed of nervous tissue, they are specialized for being stimulated to transmit stimulus from one to another part of the body rapidly.

Structure Of Nervous Tissue

• It is made of nerve cells or neurons, all of which consists of an axon. Axons are long stem-like projections emerging out of the cell, responsible for communicating with other cells called the Target cells, thereby passing impulses.
• The main part is the cell body which contains the nucleus, cytoplasm and cell organelles. Extensions of the cell membrane are referred to as processes.
• Dendrite is a highly branched processes, responsible for receiving information from other neurons and synapses (specialized point of contact). Information of other neurons is provided by dendrites to connect with its cell body.
• Information in a neuron is unidirectional as it passes through neurons from dendrites, across the cell body down the axon.

Nervous Tissue Location

• The nerve tissue or the nervous tissue is the chief tissue component of the two major parts of the nervous tissue – Central nervous system(CNS) formed by the spinal cord and the brain and the branching peripheral nerves of the peripheral nervous system (PNS) that control and regulate the functions of the body and their activities.

• The nervous tissue is located in the peripheral nerves all through the body and also in the organs of the central nervous system such as the spinal cord and the brain. The nervous tissue consists of the nerve cells or the neurons. Neurons are specialized cells that react to stimuli by generating signals through the axons, which are elongated structures arising from the cell body.

Characteristics Of Nervous Tissue

• Nervous tissue makes up for the CNS and PNS of the nervous system
• Contains two distinct cells – neurons and glial cells
• It consists of the dendrites, cell body, axon and nerve endings.
• Neurons secrete chemical neurotransmitters which are responsible for stimulating other neurons as a result of a stimuli
• Presence of specialization at axonal terminals called synapsis
• Nerve cells live long, cannot be divided and replaced(except memory cells).

Function Of Nervous Tissue

• Neurons generate and carry out nerve impulses. They produce electrical signals that are transmitted across distances, they do so by secreting chemical neurotransmitters.
• Responds to stimuli
• Carries out communication and integration
• Provides electrical insulations to nerve cells and removes debris
• Carries messages from other neurons to the cell body