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ANS
Question | Answer |
---|---|
Neurons | Conduct impulses from one body part to another |
Cell body | Concerned with metabolism and function of the cell |
Dendrites | Extensions of cytoplasm from the cell body, conduct impulses towards cell body |
Axon | Conducts impulses away from the cell body |
Synaptic end bulbs | Bulb like structures at the end of the axon that hold synaptic vessicles |
Synaptic vessicles | Contain neurotransmitters: Norepi, Ach, Dopamine, Serotonin |
Mylein Sheath | Speeds up conducton down the axon, insulates the axon |
Neurolemmocytes | makes up the sheath covering the PNS |
Neurolemma | Outer layer of neurolemmocytes (contain schwaan cells) |
Schwaan cells produce | nerve growth factor |
CNS myleain sheath | Oligodendrocyte cells, Schwaan cells are not present therefore they do not regenerate |
CNS is comprised of | Brain and spinal cord |
Peripheral nerves are comprised of | Efferent and Afferent nerves |
Efferent nerves comprised of | Somatic nervous system (voluntary) Autonomic nervous system (involuntary) |
SNS neurotransmitter | Epi and Norepi |
PNS neurotransmitter | Ach |