Basic Functions of the Nervous System
Essay by thatappoballer • February 20, 2017 • Essay • 295 Words (2 Pages) • 944 Views
4 basic functions of the nervous system
- Control of maintain a conscious of aware static
- Transmit sensory STIMULI to the brain for interpatation
- Control motor function/ transmitting motor impulses to muscles for voluntary/ involuntary movement
- Control body functions thru the autonomic nervous system
The central nervous system consists of the brain/ and spinal cord with 3 layers of protective membranes called “Meninges.”
Cerebrum- Outer most portion of the brain. The cerebrum occupies almost all cranial cords. It controls specific body functions.
Cerebellum- Also called “The small brain” is located is the posterior / inferior aspect of the cranium. It coordinates muscle activity and maintains balance thru impulses from the eyes and ears
Brainstem- Contains the “Mesencephalon”, “Pons”, and the “Medulla Oblongata.”
Medulla Oblongata- contains 3 major control centers
- Respiratory Center- Controls the Depth/ Rate of respiration
- Cardiac Center- Controls/ Regulates heart rate and force of contractions of the ventricles
- Vasomotor Center- Producers dilation and constructing of blood vessels
The spinal cord is 18” long and is an extension of the brainstem. Major function conducts of nerve impulses
Peripheral Nervous System – It’s composed of the nerves located outside the spinal cord and brain
Afferent Nerves- They carry sensory information from the body to the spinal cord and brain
Efferent Nerves- Carry motor info from the brain/ spinal cord to the body
Voluntary Nervous System- Influences the activity of the skeletal muscles (voluntary muscles) movements
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