PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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Detailed explanation-1: -Your peripheral nervous system (PNS) is that part of your nervous system that lies outside your brain and spinal cord. It plays key role in both sending information from different areas of your body back to your brain, as well as carrying out commands from your brain to various parts of your body.
Detailed explanation-2: -Sensory neurons carry information from the sense organs (such as the eyes and ears) to the brain. Motor neurons control voluntary muscle activity, such as walking and talking, and carry messages from nerve cells in the brain to the muscles. Other neurons, all of which are called interneurons.
Detailed explanation-3: -The correct answer is (b) The somatic division of the PNS refers to the innervation of the internal organs of the body. The somatic division of the PNS does not innervate internal organs; rather, the autonomic division does this.
Detailed explanation-4: -Sensory nerves report information to the brain. It is a one-way communication from the body to the brain. Motor nerves respond by sending messages from the central nervous system (brain and spinal cord) to the body for movement. Motor nerves send messages in the opposite direction from the CNS to the body.