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25
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neuron diagram, What are g, h, l, k, a, e?
g-dendrites, h โ mitochondria, l โ myelin sheath formed by schwann cells, k โ axon, a โ presynaptic terminals, e - nucleus.
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15
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Does the sodium potassium pump require energy? If so why?
Yes because it is pumping ions from areas of low concentration to areas of high concentration.
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15
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compare the frequency of the action potentials of when you touch something hot vs something warm.
The frequency is greater when you touch something hot than when you touch something warm.
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trap
No points!
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fairy
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25
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fairy
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25
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lifesaver
Give 25 points!
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15
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What do neurotransmitters do?
They pass an action potential across a synapse. Neuron to neuron or neuron to muscle (p211)
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15
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What are association neurons?
A neuron that conducts neural signals from one neuron to another neuron within the CNS
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What are cranial nerves?
a set of twelve nerves that originate in the brain and are responsible for sense or movement in the head, neck, and facial regions
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seesaw
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seesaw
Swap points!
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shark
Other team loses 15 points!
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baam
Lose 25 points!
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15
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Where is, and how large is your sciatic nerve?
The size of your little finger, and from your lower back, through your butt and down your leg. It is the largest nerve in your body
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15
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What are spinal nerves?
PNS nerves that originate from the spinal chord (Cranial nerves are nerves that start in the brain)
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What do schwann cells do?
They insulate the axons in the PNS, so the action potential can travel more efficiently
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eraser
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gift
Win 10 points!
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gift
Win 20 points!
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thief
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15
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What is the difference between the afferent and efferent nervous system?
Afferent receives information from sensory receptors to the CNS, Efferent sends information from the CNS to the effector organs
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15
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: If neurons canโt perform mitosis, where do brain tumors come from?
The glial cells (neuroglia) a tumor is an overgrowth of cells (p203)
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What neuroglia make cerebrospinal fluid?
Ependymal cells (non ciliated) ependymal cells line the passages in the brain where CSF flows (p203) ciliated move the fluid around
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25
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synapse diagram name b, l, e, i, d.
b-neurotransmitter(NT) in a synaptic vesicle.l-NT released from presynaptic neuron,e-synaptic cleft,i- NT bound to a receptor, d-post synaptic neuron
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