Infant Anatomy & Physiology Flashcards
6 cards from real PMC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Infant Anatomy & Physiology flashcards as text
Which fontanelle in a newborn typically closes last, around 18–24 months of age?
Answer: Anterior fontanelle
The anterior (front) fontanelle is the largest and closes last, usually between 18 and 24 months.
A newborn's skin is covered at birth by a waxy protective coating called:
Answer: Vernix caseosa
Vernix caseosa is the white, cheese-like protective coating that covers the newborn's skin at birth.
What is the normal resting heart rate range for a newborn (0–1 month)?
Answer: 100–160 bpm
Newborn heart rates normally range from 100 to 160 beats per minute.
The primary structural difference between a child's trachea and an adult's trachea is that the child's trachea is:
Answer: Shorter, narrower, and more flexible
A child's trachea is shorter, narrower, and more pliable than an adult's, making positioning during massage critical.
Which reflex, present at birth, causes an infant to turn its head toward a stimulus touching its cheek?
Answer: Rooting reflex
The rooting reflex helps infants locate the nipple for feeding by turning the head toward tactile stimulation on the cheek.
In pediatric massage, why is a child's liver considered more vulnerable to pressure than an adult's?
Answer: It extends lower below the rib cage and is proportionally larger
A child's liver is proportionally larger and extends further below the costal margin, making it more susceptible to direct pressure.