The __________ Speeds Up the Passage of Electrical Messages by Acting

question 11

Multiple Choice

The __________ speeds up the passage of electrical messages by acting as an insulator of the neuronal signal.

• A) blood-brain barrier
• B) terminal button
• C) myelin
• D) synaptic vesicles

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Definitions:

Trophoblast

The outer layer of cells surrounding a blastocyst in early development, which contributes to the placenta and provides nutrients to the embryo.

HCG

Human chorionic gonadotropin (HCG) is a hormone produced by the placenta after implantation.

Neural Tube

The embryonic precursor to the central nervous system, which includes the brain and spinal cord, formed from the folding and closure of a flat sheet of cells in the early embryo.

Neural Groove

A fold in the neural plate during embryonic development, which deepens to form the neural tube, ultimately developing into the central nervous system.