Nervous System

Question 1

central nervous system (CNS)

Answer 1

consists of the brain and the spinal cord

source of thoughts, emotions, and
memories

Most signals that stimulate muscles to contract and glands to secrete
originate in the CNS.

Question 1

peripheral nervous system (PNS)

Answer 1

consists of all nervous tissue outside the
CNS

PNS is divided into sensory and motor divisions

Question 2

sensory or afferent division of the PNS

Answer 2

conveys input into the CNS from sensory receptors in the body

provides the CNS with sensory information about the senses such as touch, temperature, pain, or any perceptive sensations.

pairs with our special senses which include smell, taste, vision, hearing, and equilibrium (balance)

Question 3

motor division (also known as the efferent division) of the PNS

Answer 3

conveys output from the CNS to effectors (muscles and glands).

This division is further subdivided into a somatic nervous system and autonomic nervous system

Question 4

somatic nervous system (SNS)

Answer 4

conveys output from the CNS to skeletal
muscles only.

Because its motor responses can be consciously controlled, the action of this part of the CNS is voluntary.