Nervous System

What this chapter covers

1. Coordination and Nervous System Functions

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   • Types of CoordinationNervous and chemical (hormone) coordination.
   • Functions of the Nervous SystemSenses, reasoning, voluntary and involuntary control.

2. The Neuron

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   • Neuron StructureCyton, dendrites, axon and terminal branches.
   • Types of NeuronsSensory, motor and association neurons.
   • Synapse and NerveJunctions between neurons; bundles of axons.

3. Human Nervous System

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   • Nervous System OverviewCentral and peripheral nervous systems.
   • BrainCerebrum, cerebellum and medulla oblongata.
   • Spinal CordControls reflexes below the neck.

4. Peripheral Nervous System

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   • Somatic Nervous System12 cranial, 31 spinal nerve pairs.
   • Autonomic Nervous SystemSympathetic and parasympathetic control internal organs.
   • Voluntary and Involuntary ActionsDone knowingly versus done unknowingly.

5. Reflex Action

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   • Reflex Action BasicsAutomatic response via the reflex arc.
   • Types of ReflexesNatural inborn and conditioned acquired reflexes.

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