Question

1. which of the following disorders is an abnormal accumulation of fluid within the ventricles of the brain that results in an enlarged head?

neuroblastoma
hydrocephalus
palsy
epilepsy

Explanation:

Hydrocephalus is defined as the abnormal accumulation of cerebrospinal fluid in the brain's ventricles, often leading to head enlargement (especially in infants with open fontanelles). Neuroblastoma is a cancer, palsy refers to muscle weakness, and epilepsy involves recurrent seizures—none match the described symptoms.

Answer:

Hydrocephalus