lunes, 19 de noviembre de 2018
sábado, 17 de noviembre de 2018
THE NERVOUS SYSTEM
THE CENTRAL NERVOUS SYSTEM
1.BRAIN
•Cerebrum: voluntary movements
( walking, dancing, jumping), thoughts, emotions, language and behavior.
It is divided into the left and right hemispheres.
•Cerebellum: balance, movement and coordination.
•Brain stem: involuntary movements (digestion, respiration, heart beatings).
It connects the brain to the spinal cord.
2.SPINAL CORD is made up of nerve tissue.
It controls reflex actions (spontaneous reactions that protect
our body from danger, such as pulling your hands away from a hot object).
It is protected by vertebrae.
THE PERIPHERAL NERVOUS SYSTEM
THE PERIPHERAL NERVOUS SYSTEM
It is made up of nerves that carry messages to and from the central nervous system.
Process:
1.Sensory neurons transmit information from the sense organs
(eyes, nose, ears, tongue and skin) to the brain.
2.The brain interprets the information and decides how to respond.
3.Motor neurons carry messages away from the brain
to the rest of our body and muscles.
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