write three main functions of nervous system?? please friends...answer quickly...please...☺️
Answers
The nervous system has 3 main functions: sensory, integration, and motor.
Sensory. The sensory function of the nervous system involves collecting information from sensory receptors that monitor the body’s internal and external conditions. These signals are then passed on to the central nervous system (CNS) for further processing by afferent neurons (and nerves).
Integration. The process of integration is the processing of the many sensory signals that are passed into the CNS at any given time. These signals are evaluated, compared, used for decision making, discarded or committed to memory as deemed appropriate. Integration takes place in the gray matter of the brain and spinal cord and is performed by interneurons. Many interneurons work together to form complex networks that provide this processing power.
Motor. Once the networks of interneurons in the CNS evaluate sensory information and decide on an action, they stimulate efferent neurons. Efferent neurons (also called motor neurons) carry signals from the gray matter of the CNS through the nerves of the peripheral nervous system to effector cells. The effector may be smooth, cardiac, or skeletal muscle tissue or glandular tissue. The effector then releases a hormone or moves a part of the body to respond to the stimulus.
Answer:
Function of Nervous tissue :
1. Nervous tissue enables us to respond rapidly to the stimuli.
2. Nervous system helps to coordinate with the Brain and muscles.
3. Nervous tissue comprises of Dendrite, Cell body, Axon and End dendrites which helps to transmit message.
4. Nervous system also helps us in Reflex actions also.