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How does microcephaly cause intellectual disability?

A. It causes a buildup of cerebrospinal fluid within brain cavities.
B. It forces the brain to develop in a limited space.
C. It results in stunted growth and intellectual disability caused by an insufficient supply of thyroid hormone.
D. It allows phenylpyruvic acid to accumulate in the body.

Sagot :

Final answer:

Microcephaly and related conditions cause intellectual disabilities due to restricted brain development and disrupted brain function.


Explanation:

MICROCEPHALY is a condition where the brain does not develop properly, leading to a smaller than average head size. This restricted growth forces the brain to develop in a limited space, resulting in intellectual disabilities due to the brain's inability to fully develop.

PKU (Phenylketonuria) is another disorder that causes intellectual disability by allowing phenylpyruvic acid to accumulate in the body, disrupting normal brain development.

Furthermore, hypothyroidism can also lead to intellectual disabilities as thyroid hormones play a crucial role in brain development, and insufficient supply of these hormones can result in physical and mental growth impairment.


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