The Nervous system.

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The Nervous system

Learning objectives What structures constitute the central nervous system? The peripheral nervous system? What are the primary functions of the sympathetic and parasympathetic nervous systems? Know the structure of generic neurons: dendrites, cell body, axon, axon endings Understand that an action potential is an electrical signal transmitted in one direction down a neuron that depends on chemical differences inside and outside the neuron. You do not need to know details of how this process works. What are neurotransmitters? How do they pass signals from one neuron to another? What does the Maslow pyramid show? (Fig 2.1 in your book)

Forebrain, midbrain, and hindbrain CNS: The brain Forebrain, midbrain, and hindbrain

CNS: The Spinal Cord

Peripheral nervous system: Somatic (voluntary)

Sympathetic: ‘fight or flight’ Parasympathetic: ‘rest and digest’

Cells of the nervous system Neurons: Transmit messages Glia: Support and protect neurons, maintain ion balance

Anatomy of a neuron

3 Basic types of Neurons

Psychological health

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