#1
During which trimester does the majority of organ development occur?
Second trimester
ExplanationOrgan development peaks during this trimester.
#2
Which of the following is NOT a stage of prenatal development?
Infantile stage
ExplanationThis stage occurs after birth, not during prenatal development.
#3
Which of the following is NOT an example of a prenatal environmental factor?
Genetic predisposition
ExplanationGenetic predisposition is inherited, not an environmental factor.
#4
During which trimester does the fetus experience significant growth in size and weight?
Third trimester
ExplanationThe third trimester is marked by rapid fetal growth in size and weight.
#5
At what stage of prenatal development do the major organs begin to form?
Embryonic stage
ExplanationOrganogenesis occurs during the embryonic stage of development.
#6
What is the term for the automatic response of an infant to a particular form of stimulation?
Reflex
ExplanationReflexes are innate automatic responses to stimuli.
#7
Which reflex is characterized by a baby's tendency to turn its head in the direction of a touch on its cheek?
Rooting reflex
ExplanationThis reflex aids in finding the mother's nipple for feeding.
#8
Which prenatal factor has been linked to increased risk of neural tube defects?
Maternal nutrition
ExplanationPoor maternal nutrition increases the risk of neural tube defects.
#9
What is the approximate timeline for the appearance of the Babinski reflex in infants?
2-4 months
ExplanationBabinski reflex typically emerges between 2 to 4 months after birth.
#10
Which reflex is typically tested by gently pressing the sole of an infant's foot and observing the toes fan out?
Babinski reflex
ExplanationThe Babinski reflex involves the fanning out of toes in response to sole stimulation.
#11
What is the purpose of infant reflexes?
To ensure survival and development
ExplanationThey are evolutionary adaptations aiding in survival and development.