The Baby's Fontanelles Normally Disappear by the Age of Two

question 18

Multiple Choice

The baby's fontanelles normally disappear by the age of two

• A)days.
• B)weeks.
• C)months.
• D)years.

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Definitions:

Respiration

The biological process of moving air in and out of the lungs, facilitating the exchange of oxygen and carbon dioxide between the blood and the environment.

Catecholamines

A class of neurotransmitters that include dopamine, norepinephrine, and epinephrine, which are involved in flight or flight responses, mood regulation, and cognitive alertness.

Endorphins

Natural chemicals produced in the brain that act as neurotransmitters to reduce pain and enhance pleasure.

Hormones

Chemical messengers produced by the endocrine glands that regulate various bodily functions by traveling through the bloodstream to target organs.