1. The Nervous System: Integration and Control
Components of the Nervous System
Figure 11.1

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

3. Maintenance of the Resting Membrane Potential
Figure 11.3

4. Resting Membrane Potential, Graded Potentials, and an Action Potential
Figure 11.4

5. Myelinated Neuron
Figure 11.7a

6. Summary of Synaptic Transmission
Adv. Anatomy Chapter 11
Note Packet 2
Figure 11.8

7. Summary of Synaptic Transmission
Figure 11.8

8. Transfer of Information from Neuron to Target
Synaptic transmission
Release of neurotransmitter: graded potential achieved
Effects of neurotransmitter
Excitatory: depolarize postsynaptic cell  shifts toward positive
Inhibitory: hyperpolarize postsynaptic cell  more negative
This would make it harder for threshold to be reached
Role of postsynaptic neuron: integrate and process information
Convergence
Divergence
vs.

9. Peripheral Nervous System Relays Information Between Tissues and CNS
Nerves carry signals to and from CNS
Cranial nerves
12 pairs
Connect to the brain
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Carry actions potentials between the brain and muscles, glands, and receptors of the head, neck, and thoracic and abdominal cavities

10. Peripheral Nervous System Relays Information Between Tissues and CNS
Spinal nerves
31 pairs
Each spinal nerve attaches via a ventral root and dorsal root
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11. Reflex Arcs
Figure 11.10

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

13. Ventricles of the Brain and Circulation of Cerebrospinal Fluid
Figure 11.13

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

15. Brain: Major Divisions
Midbrain
Coordinates muscles related to vision and hearing
MIDBRAIN
• Relays visual and auditory inputs
• Coordinates movement

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

17. Limbic System Emotions Basic behavior Short term memory
Fear, anger, sorrow, love, etc.
Basic behavior
Seeking food
Sexual gratification
Short term memory