Answer: The correct answer to the question is option A
MOTOR NEURONS; PERIPHERAL NERVOUS SYSTEM
He tells his students that MOTOR NEURONS in the PERIPHERAL NERVOUS SYSTEM help coordinate contraction of certain muscles and relaxation of others.
Explanation: The Nervous system is divided into
- The central nervous system
- The peripheral nervous system.
The peripheral nervous system is a neurological bridge between
The environment and the central nervous system (the sensory system)
The central nervous system and the effectors (the motor system)
The peripheral nervous system is divided into
The somatic and
The autonomic nervous system.... Which is divided into;
The parasympathetic nervous system and the sympathetic nervous system.
The two works in opposition/ contrast to ensure the relaxation and the contraction of certain muscles respectively.
Skeletal muscles contract and relax to mechanically move the body. Messages from the sympathetic nervous system cause these muscle contractions,when the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes,a process that is brought about by the parasympathetic stimulation of the peripheral nervous system.
