Moderate

A person who is nine feet tall and has very large hands and feet and a protecting jaw can attribute his physiological abnormality to an overactive ___________?

Correct answer: D. pituitary gland

  • A. thyroid gland
  • B. parathyroid gland
  • C. adrenal gland
  • D. pituitary gland

Explanation

Excess growth hormone from an overactive pituitary gland can cause gigantism before growth plates close and acromegaly in adults, producing enlarged hands, feet, jaw, and facial bones. The thyroid, parathyroid, and adrenal glands do not produce this characteristic pattern.

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