CSB332 Mid-Term WRITTEN ANSWER KEY 2011 REVISED.doc

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4 Apr 2012
School
Course
Professor
CSB 332 Neurobiology of the Synapse Summer 2011 Dr. Forder
Mid-Term Examination: Written Portion
ANSWER KEY
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Fill-in-the-blank or Circle the Correct Response : (total of 6 marks)
Use one word for each blank
1. When describing neuronal fine tuning, the term HEBBIAN
MODIFICATIONS is used to describe the condition in which only the
presynaptic terminals that are active (i.e. release neurotransmitter) at the same time
as their postsynaptic targets (i.e. fires an action potential) will be retained. (two
words) (1 mark)
2. When describing growth cone mobility, during the STATIONARY phase,
myosin is attached to the MICROTUBULES, whereas in the PROTRUSIVE
phase, actin is immobilized through attachments to the SUBSTRATE. (2 marks)
3. When discussing the somatic nervous system, somatic sensory axons enter
through the DORSAL root and their cell bodies lie OUTSIDE the CNS. (2
marks) (CIRCLE THE CORRECT RESPONSES)
4. Channels are capable of opening and closing spontaneously. TRUE (circle the
correct response) (1 mark)
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Labeling Section (total of 10 marks) :
1. Of the areas indicated on the diagram of the human brain, which ones
represent Association Areas? (give the corresponding number and name)
(3 marks)
Number 8; Name: PREFRONTAL CORTEX
Number 13; Name: POSTERIOR PORIETAL CORTEX
Number 7; Name: INFERIOTEMPORAL CORTEX
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