The premature fusion of one or more cranial?

Correct option is B

Ans. (b) Sol. The correct answer is craniosynostosis. It refers to the premature closure of one or more of the sutures of the skull, which can result in abnormal head shape and may cause developmental delays or other complications if not treated. This condition restricts the normal growth of the skull, potentially leading to intracranial pressure issues as the brain grows.
Explanation of each option:
· (a) microcephaly: This is a condition where a baby's head is much smaller than expected, often due to abnormal brain development or growth. Unlike craniosynostosis, it does not specifically relate to the premature fusion of cranial sutures.
· (b) craniosynostosis: Correct answer. This is the premature fusion of one or more cranial sutures, which can lead to abnormal skull shapes and may impact brain development if untreated.
· (c) macrocephaly: This refers to an abnormally large head, which may be caused by excess brain tissue, fluid, or other growth abnormalities. It is not associated with the premature fusion of sutures like in craniosynostosis.
· (d) hydrocephalus: This condition involves the accumulation of excess cerebrospinal fluid (CSF) within the brain, leading to increased pressure and potentially enlarged ventricles. While it can cause an abnormally large head in infants, it is not due to the premature fusion of cranial sutures.
So, the correct term for premature fusion of cranial sutures is craniosynostosis.