PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nerves
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neuron
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brain
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vertebrae
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Detailed explanation-1: -We carry out both voluntary and involuntary actions with the help of peripheral nerves. PNS includes two types of nerve fibers: Afferent nerve fibers – These are responsible for transmitting messages from tissues and organs to the CNS.
Detailed explanation-2: -The spinal cord is a vital aspect of the CNS found within the vertebral column. The purpose of the spinal cord is to send motor commands from the brain to the peripheral body as well as to relay sensory information from the sensory organs to the brain.
Detailed explanation-3: -Nerves that carry information from sensory receptors to the central nervous system only are called afferent nerves. Other neurons, known as efferent nerves, carry signals only from the central nervous system to effectors such as muscles and glands.