COMPARATIVE NEUROBIOLOGY EXAM 1 QUESTIONS AND ANSWERS

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COMPARATIVE NEUROBIOLOGY EXAM 1 QUESTIONS AND ANSWERS

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2025/2026

Institution NEUROBIOLOGY

Course NEUROBIOLOGY

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COMPARATIVE NEUROBIOLOGY EXAM 1 QUESTIONS AND ANSWERS

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COMPARATIVE NEUROBIOLOGY
EXAM 1 QUESTIONS AND ANSWERS

Oligodendrocytes - Correct Answers -lay down CNS myelin

Schwann cells - Correct Answers -lay down PNS myelin

microglial cells - Correct Answers -remove cellular debris, modulate local inflammation

efferent - Correct Answers -carry information away from the brain

afferent - Correct Answers -carry information toward the brain

cresyl violet - Correct Answers -allows counting cell bodies, binds to ribosomes,
nucleus, acidic components of cytoplasm

commissure - Correct Answers -connect hemiganglia of same segment

deformation of front end of protozoa - Correct Answers -increase in PCa++ which
depolarizes cell, causes backwards motion

deformation of rear end of protozoa - Correct Answers -increase in PK+ which
hyperpolarizes cell, causes forward motion

porifera - Correct Answers -sponges, lack nervous system, cilia (especially osculum)
sense water flow

reduced silver stains - Correct Answers -stains only neurons, good to count axons

cobaltous chloride - Correct Answers -retrograde

horseradish peroxidase - Correct Answers -retrograde, black reaction product

Lucifer yellow - Correct Answers -intracellular stain, kills cells, shows circuits

immunohistochemistry - Correct Answers -specific primary antibody binds to receptor on
cell, secondary antibodies w marker binds to primary antibody

GAL4/UAS - Correct Answers -can see what genes a cell is transcribing

connective - Correct Answers -connects hemiganglia of adjacent segments

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Uploaded on: May 9, 2026
Number of pages: 3
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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