Ch 11 A&P.docx - Ch 11: Pg. 10 Pg. 11 Pg. 12 - Ependymal...

Ch 11:
Pg. 10
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Pg. 11
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Pg. 12
- Ependymal cells (CNS) they have ficrovilli
Pg. 15
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Pg. 17
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Pg. 19
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Pg. 22
- Schwann cells are like oligodendrocytes
- Satellite cells: Surround neuron cell bodies in PNS
Pg. 24
- Nerves can live up to 100 years if contained in good health
Pg. 25
- perikaryon or soma
- they create life within the cell
pg. 26
- Most neuron cell bodies are located in clusters in CNS
- Remember
- Nuclei : clusters of neuron cell bodies in CNS
- Ganglia : clusters of neuron cell bodies in PNS
Pg. 27
- Dendrites receive impulses
- And axons send out signals
Pg. 28
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Pg. 29
- Dendrites: Convey incoming messages toward cell body as graded potentials
Pg. 30
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Pg. 31
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Pg. 32
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Pg. 33
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Pg. 40
- White matter : regions of brain and spinal cord with dense collections of myelinated
fibers
- Usually fiber tracts
- Gray matter : mostly neuron cell bodies and nonmyelinated fibers
Pg. 46
- Functional classification of neurons
- Three types of neurons grouped by direction in which nerve impulse travels relative to
CNS
- Sensory
- Transmit impulses from sensory receptors toward CNS
- Most unipolar which means they are single stranded
- Most sensory organs are like this
- Cell bodies outside the CNS are called