#1
Which sense is the least developed in newborns?
Sight
ExplanationNewborns have limited visual acuity, and their sight is the least developed among their senses.
#2
What is the term for an infant's ability to understand that an object still exists even if it is out of sight?
Object permanence
ExplanationObject permanence is the cognitive milestone where an infant recognizes that objects continue to exist even when they are no longer visible.
#3
Which developmental milestone is typically achieved around 8-12 months of age and involves using thumb and forefinger to pick up small objects?
Pincer grasp
ExplanationThe pincer grasp, where infants use their thumb and forefinger to pick up small objects, is a developmental milestone typically reached around 8-12 months of age.
#4
What is the primary purpose of the Moro reflex in infants?
Protecting against falling
ExplanationThe Moro reflex in infants serves the primary purpose of protecting against falling by triggering an instinctive startle response.
#5
What is the term for the reflex that causes a baby's toes to spread apart when the sole of the foot is stroked?
Babinski reflex
ExplanationThe Babinski reflex is the response where a baby's toes spread apart when the sole of the foot is stroked, indicating proper neurological development.
#6
At what age do most infants start teething?
3-4 months
ExplanationTeething in infants typically begins around 3-4 months of age, marked by the emergence of their first teeth.
#7
Which part of the brain is responsible for language development in infants?
Temporal lobe
ExplanationThe temporal lobe plays a crucial role in language development in infants, supporting speech and auditory processing.
#8
Which motor skill typically develops first in infants?
Rolling over
ExplanationRolling over is one of the earliest motor skills developed by infants, usually occurring before crawling.
#9
What is the primary purpose of the fontanelle in an infant's skull?
Facilitating skull flexibility during childbirth
ExplanationThe fontanelle in an infant's skull allows flexibility during childbirth, easing the passage through the birth canal.
#10
What is the term for an infant's instinctive response to turn toward a stimulus that touches its cheek or mouth?
Rooting reflex
ExplanationThe rooting reflex is an instinctive response where an infant turns toward a stimulus touching its cheek or mouth, often associated with feeding.
#11
Which part of the brain is responsible for emotional regulation and social behavior in infants?
Amygdala
ExplanationThe amygdala plays a key role in emotional regulation and social behavior in infants, influencing responses to stimuli.
#12
What is the term for a reflex that causes a baby to turn its head and suck when its cheek is stroked?
Rooting reflex
ExplanationThe rooting reflex is an instinctive response where a baby turns its head and begins to suck when its cheek is gently touched or stroked.
#13
At what age do most infants start to crawl?
7-9 months
ExplanationCrawling typically begins in infants around 7-9 months as they develop the necessary motor skills and strength.
#14
Which type of memory is particularly well-developed in infants, allowing them to remember events and experiences over short periods?
Episodic memory
ExplanationInfants possess well-developed episodic memory, enabling them to remember events and experiences over short periods of time.
#15
What is the average weight gain per month for a healthy infant during the first six months of life?
5-6 pounds
ExplanationA healthy infant typically gains an average of 5-6 pounds per month during the first six months of life.
#16
At what age do most infants begin to babble and produce repetitive consonant-vowel combinations?
6-8 months
ExplanationBabbling, characterized by repetitive consonant-vowel combinations, typically begins in infants around 6-8 months of age.
#17
What is the term for an infant's ability to imitate facial expressions and gestures of others?
Mirror neurons
ExplanationMirror neurons enable infants to imitate facial expressions and gestures of others, contributing to social and emotional development.