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10 Cards in this Set
- Front
- Back
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What structures are included in the CNS (central nervous system)?
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Brain and spinal cord.
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A student pulls their hand away from a flame before they cry out in pain. Why does this occur?
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A reflex arc pathway was followed from stimulus to muscle without the need of the brain. Comprehension of pain comes later.
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What types of neurons are only found within the brain or spinal cord?
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Interneurons or association neurons.
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PNS neurons have a myelin sheath. How does this speed up nervous transmission?
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An impulse can jump or hop from Node to Node without having to traverse the entire length of the axon.
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Autonomic nervous pathways are generally found within this branch of the nervous system
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PNS or peripheral nervous system.
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The brain is a vital organ and is protected in many ways. List three ways the brain is protected.
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Bone (Skull)
Fluid (CSF) Meninges (3 layers |
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Sensory neurons enter the spinal cord through the ______ root.
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Dorsal root, or the back of the spinal cord.
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Motor neurons leave the spinal cord through the ______ root.
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Ventral root, or the front of the spinal cord.
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Neurons that are directly connected to an effector are known as
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motor neurons.
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The first neuron to respond to a stimuli is a
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sensory neuron.
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