Down Syndrome

question 34

Multiple Choice

Down syndrome

• A)is very rare.
• B)is inherited as an X-linked recessive condition.
• C)results in some degree of mental impairment.
• D)individuals have normal life expectancies.
• E)cannot be detected through prenatal diagnosis.

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Definitions:

Zona Reticularis

The zone of the adrenal gland that secretes sex steroids, situated deepest within the adrenal cortex.

Parafollicular Cells

Cells in the thyroid gland that produce calcitonin, a hormone involved in calcium and phosphate metabolism.

Calcitonin

A hormone secreted by the thyroid gland that helps regulate calcium levels in the blood.

Blood Calcium

The level of calcium ions in the bloodstream, critical for various bodily functions including bone health, nerve transmission, and muscle function.