Final answer:
The anterior fontanelle in newborns is a soft spot on the baby's head that allows for the growth and expansion of the baby's skull. It usually closes by the age of 18 months. It should be checked regularly for signs of dehydration or abnormality.
Step-by-step explanation:
The anterior fontanelle in newborns is a soft spot on the baby's head that allows for the growth and expansion of the baby's skull. It usually closes by the age of 18 months. It is important to check the anterior fontanelle regularly for signs of dehydration or abnormality.