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The
Nervous System's main function is to respond to stimuli
and to receive and send messages. These stimuli, or
perceived changes in the environment, are perceived
with nerves.
The
central nervous system contains many different sections
and many different lobes. To start with, we have the
brain and the spinal cord.
The
brain has different section like: the cerebrum, the
cerebellum, and the medulla oblongata.
The
cerebrum has many different lobes: the frontal lobe,
the temporal lobe, the occiputal lobe, and the parietal
lobe. The frontal lobe's functions are the following:
to control speech, emotions, memory, thinking, learning,
and voluntary movement. The temporal lobes function
to sense hearing, smelling, and tasting. The occipital
lobe's function is to control vision. The parietal
lobe's function is to sense touch.
The
cerebellum controls the following: balance, coordination,
and maintaining muscle contraction.
The
Medulla Oblongata's function is the following: to
crontrol heartbeat, digestion, respiration, and other
involuntary movement.
The
spinal cord's function is to carry out all the messages
from the brain.
The
structures of the nervous system are: cornea, aqueous
humor, iris, pupil, lens, lens bending muscle, vitreous
humor, sclera, retina, blind spot, optic nerve, auditory
canal, hammer, stirrup, semicircular canls, auditory
nerve, oval window, ear drum, anvil, cochlea, eustacian
tube, wax gland, auricle, brain, cerebrum, frontal
lobe, temporal lobe, occipital lobe, parietal lobe,
cerebellum, medulla oblongata, and spinal cord.
The
amazing thing about the nervous system is that it
decides everything that you aren't aware about, but
it still happens. For example, breathing. Most people
don't notice their breathing until they actually think
about it. It's the same with other involuntary actions.
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