1. Do what you can, with what you have, where you are.
12/1/2018
Title: Anat & Phys 11/6/06
Objectives:
To prepare to assess knowledge of the skeletal system and learn about the nervous system.
Class Topics
Review for Skeletal System Test
Nervous System
Do what you can, with what you have, where you are.
Theodore Roosevelt
Saturday, December 01, :07 PM

2. Class Assignments Skeletal System Test 11/8/06 Due this class period
12/1/2018
Class Assignments
What
By When
Skeletal System Test 11/8/06
Due this class period
Due next class period
Due in the future

3. Nervous System Divisions Central Nervous System (CNS)
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Nervous System
Divisions
Central Nervous System (CNS)
Brain & Spinal Cord
all sensory impulses arrive here
all motor impulses originate here
Peripheral Nervous System (PNS)
all nerves outside of CNS
cranial nerves - from brain
12 pairs
spinal nerves - from spinal cord

4. PNS 2 divisions somatic (voluntary) autonomic (involuntary)
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PNS
2 divisions
somatic (voluntary)
sensory and motor
autonomic (involuntary)
sympathetic
used during stressful times
injury, strenous physical activity, etc
parasympathetic
used during normal functioning

5. 12/1/2018

6. Nerve Tissue Neurons Neuroglia nerve cells
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Nerve Tissue
Neurons
nerve cells
Neuroglia
support and maintain neurons

7. Neuroglia (Figure 9-2) Astrocytes - CNS - control blood flow
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Neuroglia (Figure 9-2)
Astrocytes - CNS - control blood flow
ependymal cells - CNS - form CSF
Microglia - CNS - used to clean
Oligodendrocytes - CNS - used to speed up action potentials
Schwann cells - found in PNS - aids in conduction of action potential and helps large neurons

8. Neuron Parts Cell body Dendrites Axon
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Cell body
cytoplasm, nucleus (with nucleolus), and organelles
organelles including Nissl bodies (like RER) and lacking mitotic spindles
Dendrites
numerous
conduct action potential towards cell body
Axon
single
conduct action potential away from cell body
Neuron Parts

9. 12/1/2018