Two adolescents A and B have the SAME pituitary problem: their pituitary cannot release enough growth hormone. Which outcome is MOST consistent with this?
ATheir voices become very deep
BTheir voice becomes high-pitched permanently
CTheir long bones do not elongate properly during the growth spurt, so they end up shorter than expected
DThey lose their hair
Answer & Solution
Correct answer: C. Their long bones do not elongate properly during the growth spurt, so they end up shorter than expected
Growth hormone from the pituitary drives the elongation of long bones in the limbs during the adolescent growth spurt. Deficiency in growth hormone leads to a notably shorter final adult height. The voice and hair changes mentioned are driven mostly by sex hormones, not by growth hormone.
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