5. The portion of the nervous system that
contains the cranial nerves and spinal
nerves. These nerves are mainly
responsible for voluntary muscle
movement, smell, taste, sight, and
hearing.
8. The brain is one of the largest organs in the
body and coordinates most body
activities.it is the center for all thought ,
memory ,judgment, and emotion. Each part
of the brain is responsible for controlling
different body functions, such as
temperature regulation and breathing. The
four sections to the brain are the cerebrum,
cerebellum, diencephalon, and brainstem.
The spinal cord provides a pathway for
impulses traveling to and from the brain. It
is a column of nerve fibers that extends
from the medulla oblongata of the brain
down to the level of the second lumbar
vertebra.