OCCTH 585 Neuro Exam Questions and Answers | 100% Pass
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Course
2024/2025
Institution
2024/2025
OCCTH 585 Neuro Exam Questions and
Answers | 100% Pass
Information flows through neurons from ____ to ____ in the neuron - Answer-
dendrite; axon
_____ bring a cell to threshold while _____ bring a cell further from threshold -
Answer-EPSPs; IPSPs
What 3 main things is neuroplasticity capable...
that signal to a neuron to grow their collaterals in that direction
What are chemorepellants? - Answer✔✔-chemical signals that signal to a neuron to
grow their collaterals away from that direction
What structures release chemoattractants and chemorepellants? - Answer✔✔-guide
cells
What is a growth cone? - Answer✔✔-a specialized structure at the end of the axon
that has filopodia that branch out in multiple directions to look for chemoattractive and
chemorepellant signals
Are neurons always responsive to guidance molecules? - Answer✔✔-no, they are
time-locked based on the developmental clock of the embryo; some guidance
molecules can be both a chemoattractant and a chemorepellant depending on the
embryo's current stage of development
A large chemorepellant signal can lead to ____ ____ ____; exposure can also signal
____________________ - Answer✔✔-growth cone collapse; growth of filipodia off
growth of different spots of the neuron
Where are new neurons produced? (3) - Answer✔✔-- subventricular zone (olfactory)
- dentrate gyrus of hippocampus (memory)
- Cerebral cortex
What are neurons and neurogenesis' roles in learning and memory? (3) - Answer✔✔-
- undergo synaptic plasticity to retain memory
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