The nervous system surbhi upmanyu (iv i )

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  • 1. PREPARED BY- SURBHI UPMANYU IV I
  • 2. Nervous System A system that controls all of the activities of the body. The nervous system is made of: The brain The spinal cord The nerves The senses
  • 3. The nervous system also allows you to react to a stimulus. Stimulus A stimulus is a change in the environment. Example: A hot stove Or… tripping over a rock
  • 4. Your reactions are automatic. Automatic Automatic means that you do not have to think about your reactions. Example: If a bug flies by your eye, you will blink.
  • 5. Brain An organ that controls your emotions, your thoughts, and every movement you make.
  • 6. Outer Nervous System The Outer Nervous System is made of the nerves and the sense organs. Nerves Sense organs
  • 7. Nerve Impulse Messages carried throughout the body by nerves.
  • 8. "Funny Bone" You have a nerve along your whole arm. The “funny bone” is the only place on the arm where the nerve is not protected. The “funny bone” is on the elbow.
  • 9. The Central Nervous System * The Central Nervous System controls all of the body’s activities. * The Central Nervous System is made of two main organs. 1. The brain 2. The spinal cord
  • 10. The Spinal Cord * The spinal cord sends messages to the brain. * The spinal cord is the part of the nervous system that connects the brain to the rest of the nervous system.
  • 11. The Brain * The brain controls everything in the body. * The brain is made of more than 10 billion nerves!
    • The brain is divided into three parts and is
    • protected by the skull.
  • 12. The Three Parts of the Brain * The Brain has three main parts… 1. The Cerebrum 2. The Cerebellum 3. The Brain Stem
  • 13. The Cerebrum * The Cerebrum is the largest part of the brain. 1. The cerebrum controls your thinking. 2. The cerebrum controls your memory. 3. The cerebrum controls your speaking.
    • The cerebrum controls your
    • movement and identifies the
    • information gathered by your
    • sense organs.
  • 14. The Cerebellum * The cerebellum is below and to the back of the cerebrum.
    • The cerebellum controls
    • your balance.
    • The cerebellum controls
    • your posture.
  • 15. The Vertebrae * The vertebrae are the many bones that protect the nerves in the spinal cord.
  • 16.