What are the function of nervous tissue? how muscle tissue response to nervous impulses?
Answers
Nervous tissue is composed of three main parts: nerves, the spinal cord and the brain. The primary function of nervous tissue is to receive stimuli and send the impulse to the spinal cord and brain. The brain sends back a response to the muscles via the nerves.
Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron. ... The chemical message, a neurotransmitter called acetylcholine, binds to receptors on the outside of the muscle fiber.
Answer:
Functions of nervous tissue : It collects information from receptors of sense organs, sends it to brain via spinal cord. Brain processes (Analyses) information, makes decisions based on information and conveys decisions to effectors such as muscles or glands. Muscle tissue respond to nervous impulse : When a nerve impulse reaches the muscle, the muscle fibre moves. The movement at the cellular level begins. Muscle cells will move by changing their shape so that they shorten. Muscle cells have special proteins that change both their shape and their arrangement in the cell in response to nervous electrical impulses. Thus, muscle tissue brings about movement.