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30 Cards in this Set
- Front
- Back
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Q. Central Nervous System:
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brain and spinal cord
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Q. Peripheral Nervous System:
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cranial, spinal, and peripheral nerves and ganglia, specialized nerve endings
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Q. Somatic Nervous System:
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Voluntary control
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Q. Autonomic Nervous System:
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Sympathetic Division, Parasympathetic Division
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Q. Sensory Neurons:
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convey impulses from receptors to the central nervous system (CNS). Axons of these cells are called afferent fibers.
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Q. Motor Neurons:
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convey impulses from the CNS to effector cells. There are both somatic and visceral efferent fibers
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Q. Interneurons:
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These are elements of a communicating and integrating network interposed between the sensory and motor neurons
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Q. Chemical Synapses:
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The most common mode of communication between two nerve cells. Most common in mammals
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Q. Electrical synapse:
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Current spreads directly from cell to cell due to ion flow
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Q. Axodendritic Synapses:
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axon to the dendrite
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Q. Axosomatic Synapses:
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axon and the neuronal cell body
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Q. Axoaxonic Synapses:
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between two axons
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Q. Dendrodendritic Synapses:
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Between two dendrites
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Q. Synaptic vesicles Physiology:
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containing neuro-transmitter accumulate near the pre- synaptic membrane
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Q. The neurotransmitter diffuses:
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across the synaptic cleft to stimulate receptors in the postsynaptic membrane
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Q. Anterograde:
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Cell body to terminal
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Q. Retrograde:
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Terminal to cell body
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Q. Anterograde transport moves:
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organelles, vesicles, macromolecules, and enzymes needed for neurotransmitter synthesis
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Q. Retrograde transport moves:
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protein building blocks for neurofilaments, subunits of microtubules, and enzymes
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Q. Microtubules:
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play a role in transport
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Q. Kinesin:
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a microtubule-associated protein, is involved in anterograde transport
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Q. Dynein:
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another microtubule-associated protein is involved in retrograde transport
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Q. Schwann Cells:
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Make the myelin that surrounds the axon in Peripheral Nervous System
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Q. Oligodendroglia:
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A single one can myelinate multiple axons
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Q. Microglia:
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not derived from neuroepithelium, they come from macrophages
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Q. Ependymal Cells: Come from neruepithelial cells. Line the ventricals of the CNS
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Ependymal Cells: Come from neruepithelial cells. Line the ventricals of the CNS
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Q. Meninges: Dura Mater, Arachnoid mater, pia mater
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Meninges: Dura Mater, Arachnoid mater, pia mater
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Q. Dura Mater:
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outermost, toughest of the three meninges (membranes) of the brain and spinal cord.
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Q. Arachnoid mater:
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middle membrane encasing the brain
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Q. Pia mater
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innermost of the three meninges covering the brain and spinal cord
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