1. Sponge: Set up Cornell Notes on pg. 3 Topic: Ch. 10.1 Basic Structure and function of the NS Essential Question: 1.What is the difference between neurons and neuroglial cells? 2.1 Atoms, Ions, and Molecules 10.1 Basic Structure and function of the NS 1.What is the difference between neurons and neuroglial cells?

2. Pg. 2 Sensory IntegrativeMotor Human Body for Students: The Nervous System Video Notes 15-20 bullets

3. 3 Chapter 10 Nervous System I The nervous system is composed predominantly of neural tissue Also has… Blood vessels Connective tissue

4. 4 Neural tissue consists of two cell types: 1. Nerve cells/neurons: Specialized to react to physical and chemical changes in their surroundings

5. 5 2. Neuroglial cells Surround and support neurons Nourish neurons Possibly play a role in sending and receiving messages Cell body

6. 6 Divisions of the Nervous System Central Nervous System brain spinal cord Brain Spinal Cord

7. 7 Peripheral Nervous System nerves cranial nerves spinal nerves 5

8. 8 Divisions of the Nervous System Video (4m38s)

9. 9 Nervous System 3 major functions: Sensory Integrative Motor Functions of the Nervous System

10. 10 Sensory receptors: Gather information by detecting changes inside and outside of the body and sends it to CNS Outside: Light & Sound Intensities Inside: Temperature Oxygen Levels pH Levels Draw on pg. 2

11. 11 Integrative: Convert information from sensory receptors into nerve impulses which will be sent to the CNS The signals are brought together creating sensations, adding to memory, and producing thoughts Draw on Pg. 2

12. 12 Motor Functions: Neurons that carry impulses from the CNS to responsive structures called effectors Effectors: are on the outside of the nervous system Include muscles which contract Glands which secrete chemicals

13. 13 Motor portion of PNS can be divided into two parts: 1. Somatic nervous system: Oversees conscious activities Ex: skeletal muscle contraction 2. Autonomic nervous system: Controls involuntary actions Ex: heartbeat and glands Draw on Pg. 2

14. 14 Comparing the Autonomic and Somatic Nervous System Video (1m46s)

15. 15 The nervous system can: Detect changes in the body Make decisions based on the info received Stimulate muscles and/or glands to respond Counteract changes to maintain homeostasis In a nutshell….