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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
Created by: bpebworth2