1. 1 Warm Up: Define the following vocabulary word: meninges (pg 901) What do you think meningitis is? 1

2. CHAPTER 35: Nervous System 35-3: Divisions of the Nervous System

3. Central Nervous System Central nervous system –relays messages –processes information –analyzes information

4. The Brain Brain: made of neurons –controls daily operations of human body –controls homeostasis –interprets sensory information

5. Cerebrum: largest part of brain controls the conscious activities of the body Brain Stem: links cerebrum with spinal cord The Brain Cerebellum: coordinates muscle contraction

6. Thalamus & Hypothalamus Thalamus: relays messages Hypothalamus: maintains homeostasis Pituitary Gland: Regulates puberty

7. The Spinal Cord Spinal Cord: link between the brain & rest of the body Reflexes: involuntary movements Reflex arc: pathway your reflex impulse travels –knee tapped –sensory receptor sends impulse to spinal cord –triggers motor neuron- muscle contracts

8. The Peripheral Nervous System SENSORY DIVISION –Sends impulses from sense organs to central nervous system MOTOR DIVISION –Sends impulses from central nervous system to muscles or glands –2 parts Somatic System Autonomic System Ex: sight, touch

9. Somatic & Autonomic Nervous Systems Somatic Nervous System –Activities like movement of skeletal muscle –Under conscious control Autonomic Nervous System –Involuntary, unconscious control –2 parts Sympathetic –Helps body respond to stress Parasympathetic –Keeps body maintaining homeostasis

10. 10 Is it a somatic or autonomic? Pulling your hand back from a hot stove 10

11. 11 Is it a somatic or autonomic? Raising your hand in class 11

12. Your Assignment Draw a Brain (pg 901) –Include the major parts of the brain: Cerebrum, Cerebellum, Medulla Oblongata & Spinal Cord. –Include the Important glands within the brain: Thalamus, Hypothalamus & Pituitary. Use color and label everything! This is going to be part of a human body poster, so make sure it is nicely done!