Which substance, acting alongside somatropin, promotes growth by signaling brain cells directly to undergo differentiation?
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Answer: D. Both a & b
Explanation
Thyroxine and tri-iodothyronine work alongside growth hormone to regulate development. Both thyroid hormones signal cells to undergo proper metabolic differentiation during growth. A deficiency in these hormones can severely impair normal somatic development. Somatropin is the synthetic or natural human growth hormone produced by the pituitary gland. The thyroid gland synthesizes T3 and T4 hormones to control basal metabolic rate. Endocrine feedback loops coordinate the synergistic actions of multiple hormones.
Pediatric endocrinologists monitor thyroid hormone levels in children experiencing growth delays. Metabolic disorders involving these hormones require lifelong medical management and therapy. Understanding hormonal synergy is vital for treating various endocrine deficiency syndromes. Calcitonin primarily regulates blood calcium levels rather than direct cellular growth differentiation. Selecting individual thyroid hormones ignores the synergistic role played by both compounds. Neither hormone acts entirely alone without the presence of somatropin during development.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
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