The document discusses the components and functions of the nervous system. It describes the types of neurons, including sensory neurons, interneurons, and motor neurons. It explains how neurons transmit signals through synapses and how reflex arcs function. The document also outlines the divisions of the autonomic nervous system and describes the major structures of the brain, including the forebrain, midbrain, hindbrain, cerebellum, medulla, pons, and limbic system.

2. Components of the Nervous System Figure 11.1

3. Types of Neurons in the Nervous System Figure 11.2 Sensory neuron Dendrite Receptor Cell body Axon Axon terminals Axon bulb Dendrites Dendrites Cell body Cell body Axon Axon Axon hillock Interneuron Brain and spinal cord Motor neuron Skin Muscle Impulse direction

4. Myelinated Neuron Figure 11.7a

5. Summary of Synaptic Transmission Figure 11.8

6. Reflex Arcs Animation—Reflex Arcs Figure 11.10 PLAY

7. Sympathetic and Parasympathetic Divisions of the Autonomic Nervous System Figure 11.12 (1 of 2)

8. Sympathetic and Parasympathetic Divisions of the Autonomic Nervous System Figure 11.12 (2 of 2)

9. The Brain Figure 11.15 FOREBRAIN Thalamus • Receives, processes and transfers information Corpus callosum • Bridges the two cerebral hemispheres Cerebrum • Coordinates language • Controls decision making • Produces conscious thought

10. The Brain Figure 11.15 MIDBRAIN • Relays visual and auditory inputs • Coordinates movement

11. The Brain Figure 11.15 HINDBRAIN Cerebellum • Controls basic and skilled movements Medulla oblongata • Controls automatic functions of internal organs Pons • Connects cerebellum, spinal cord with higher brain centers • Aids medulla in regulating respiration

12. The Brain Figure 11.17 (1 of 2)

13. The Brain Figure 11.17 (2 of 2)

14. Limbic System: Emotions of Fear, Anger, Sorrow, Love