An 8-month-old boy is admitted to the pediatric unit following a fall from his high chair. The child is awake, alert, and crying. The nurse should know that a brain injury is more severe in children because of （）.

A．increased myelination.

B．intracranial hypotension.

C．cerebral hyperemia.

D．a slightly thicker cranium.

组成后囟的颅骨为

A．2片额骨，1片枕骨

B．2片顶骨，1片枕骨

C．2片顶骨，2片额骨

D．2片颞骨，2片枕骨

E．2片顶骨，2片枕骨