Why Do Many Reflexes, Such as Pulling Your Hand Away

question 291

Multiple Choice

Why do many reflexes, such as pulling your hand away from a hot iron, happen so quickly?

• A) They involve the neurotransmitter GABA rather than dopamine.
• B) The message involved does not have to go all the way to the brain.
• C) The speed of processing is faster in the frontal lobes than in the occipital lobes.
• D) The path that reflexes follow to the brain is direct and does not involve any neurotransmitters.

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Definitions:

Amniotic Fluid

The protective liquid contained within the amniotic sac of a pregnant female, which surrounds and cushions the fetus.

Nourishment

The food or other substances necessary for growth, health, and good condition.

Yolk Sac

An extra-embryonic membrane that provides nutrition to the developing embryo in eggs and early stages of mammalian development.

Homeotic Genes

Genes that control the overall body plan by controlling the fate of groups of cells during development.