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OCT 225 LECTURE 2 Exam | Questions with 100% Correct Verified Answers
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OCT 225 LECTURE 2 Exam | Questions with 100% Correct Verified Answers
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OCT 225 LECTURE 2 Exam | Questionswith 100% Correct Verified Answers
VESICLES: by week 3-4 during the enlargement stage what 3 structures form?
• Forebrain
• Midbrain
• Hindbrain
VESICLES: by week 5-6 during the enlargement stage the forebrain and hindbrain
divide into what structures?
• Forebrain divides into:
• Diencephalon
• Telencephalon
• Hindbrain divides into:
• Metencephalon
• Myelencephalon
MIDBRAIN REMAINS THE MIDBRAIN
After the vesicle stage the brain development begins. What does the
Telencephalon, Diencephalon, Midbrain, Metencephalon and Myelencephalon
further divide into?
, Telencephalon becomes: • Cerebral hemisphere, basal ganglia, lateral ventricles
• Diencephalon becomes:• Thalamus, hypothalamus, 3rd ventricle
• Midbrain becomes:• Midbrain, cerebral aqueduct
• Metencephalon becomes:• Pons, cerebellum, 4th ventricle
• Myelencephalon becomes:• Medulla, 4th ventricle
What is one condition that results in a developmental abnormality in the nervous
system?
Spina Bifida: when posterior neural tube does not fully close
What are the two types of cells in the nervous system?
Neurons and glial cells
What are neurons?
Basic units of the central nervous system
excitable cells that send and receive electrical signals
What is the structure of a neuron?
Cell body (soma or perikaryon)
• Nucleus
• Dendrites
• Axon Hillock
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