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Hormones/Vitamins
Human Anatomy - Bone Growth and Maintenance - Effects of Hormones and Vitamins
Question | Answer |
---|---|
Calcitonin | promotes calcium deposition in bone and inhibits osteoblast activity |
growth hormone | stimutlates liver to produce the hormone somatomedin, which causes cartilage proliferation (Wucherung) at epiphyseal plate and resulting bone elongation |
parathyroid hormone | increases blood calcium levels by encouraging bone resorption |
sex hormones (estrogen and testosterone) | stimulate osteoblasts; promote epiphydeal plate growth and closure |
thyroid hormone | stimulates bone growth by stimulating metabolic rate of osteoblasts |
Vitamin A | activates osteoblasts |
Vitamin C (ascorbic acid) | promotes collagen production |
Vitamin D | promotes absorption of calcium and phosphate into blood |