EVERYDAY SCIENCE

SCIENCE

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are the two divisions of the motor nervous system?
A
Sensory and Motor
B
Peripheral and Central
C
Somatic and Autonomic
D
Brain and Spinal Cord
Explanation: 

Detailed explanation-1: -The somatic peripheral nervous system is a single neuron system with the motor neurons lying inside the brainstem or spinal cord and the sensory neurons lying in the dorsal root ganglia. The autonomic peripheral nervous system is a two neuron system with a neuron lying outside of the CNS in the autonomic ganglia.

Detailed explanation-2: -The somatic motor division carries signals to the skeletal muscles. The visceral motor division, also known as the autonomic nervous system, carries signals to glands, cardiac muscle, and smooth muscle.

Detailed explanation-3: -The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system.

Detailed explanation-4: -The somatic nervous system has sensory and motor pathways, whereas the autonomic nervous system only has motor pathways. The autonomic nervous system controls internal organs and glands, while the somatic nervous system controls muscles and movement.

Detailed explanation-5: -Your somatic nervous system involves things you can consciously sense and do. Your autonomic nervous system works without you thinking about it, running the behind-the-scenes processes that keep you alive. Both are subdivisions of the peripheral nervous system, a subsystem of your overall nervous system.

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