Parts of the Nervous System

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Presentation transcript:

Parts of the Nervous System

Central Nervous System Consists of the brain and spinal cord. Protected by the skeleton. Skull protects the brain and vertebrae protect the spinal cord.

Brain Coordinates almost all voluntary and involuntary activities of your body. Contains about 100 billion neurons.

Cerebrum Largest part of the brain. Control center of your thoughts and voluntary actions. Has two halves or hemispheres. In most people, the left side is for language and logical thinking and the right side for creativity.

Cerebellum Information from the sense organs are interpreted here. Helps with balance and coordination.

Brain Stem Connects the brain to the spinal cord. The medulla part of the brain stem controls involuntary muscles such as the heart.

Spinal Cord A bundle of nerves that goes from the brain stem down the center of the back. The spinal cord connects with nerves outside of the central nervous system.

Peripheral Nervous System Consists of the nerves outside of the brain and spinal cord. Connects the central nervous system to the limbs and organs. Not protected by the skeleton leaving it exposed to potential injury.

Parts of the Peripheral Nervous System The somatic nervous system controls voluntary aspects of the peripheral nervous system such as arm movement. The autonomic nervous system controls involuntary aspects of the peripheral nervous system such as heart beats.

Alzheimer's The most common form of dementia. A person’s brain slowly gets worse over time. Usually starts with forgetting things and may get to the point where the person can’t take care of themselves.