Nervous Tissue today Exam key posted on website Exam #1 rebuttals due next Thursday April 27 th at 1:30.

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Presentation transcript:

Nervous Tissue today Exam key posted on website Exam #1 rebuttals due next Thursday April 27 th at 1:30

What type of sensory information are you integrating right now?

PNS CNS Sensory Motor VisceralSomatic SympatheticParasympathetic CNS = brain and SC PNS = everything else

1 3 2

1 3 2

Nucleus Axons or Dendrites Cell body Neuroglial cells

Blue = axon Multipolar Neurons bipolar Unipolar

Draw & Label a Multipolar Neuron Nucleus Dendrite Axon Synaptic end bulb Information flow

Neuroglia CNS –Astrocytes –Microglia –Oligodendrocytes –Ependymal PNS –Schwann –Satellite cell

CNS neuroglia

Fig. 13.7a(TE Art) Oligodendrocyte Nerve fiber Myelin

CNS PNS oligodendrocyte Schwann cell

axons S

Multiple sclerosis

Postsynaptic neuron Synaptic vesicles Synaptic cleft Neurotransmitter receptor Presynaptic neuron

Neurotransmitters Excitatory - acetylcholine (muscles) - norepinephrine (ANS) - glutamate (brain) - aspartate (spinal cord) Inhibitory –GABA (brain) –Glycine (spinal cord)

Tomorrow Spinal cord and spinal nerves - Chapter 14

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