Why Don't Our Bones Keep Growing Forever?
Why Don't Our Bones Keep Growing Forever? with tags minuteearth, minute earth, minutephysics, minute physics, earth, history, science, environment, environmental science, earth science, growth, hormones, wadlow, plates, cartilage, bones, skeleton
Fish, amphibians, and reptiles –actually, almost all vertebrates– get bigger throughout their lives; they generally keep on growing until they die. Then, there are humans, who, by the age of 20 or so, just stop getting bigger… or at least taller. Why do we stop growing partway through life?
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To learn more about this topic, start your googling with these keywords:
- Cartilage: firm, whitish, flexible connective tissue found in various forms in the larynx and respiratory tract, in structures such as the external ear, and in the articulating surfaces of joints. It is more widespread in the infant skeleton, being replaced by bone during growth.
- Estrogen: any of a group of steroid hormones that regulate sexual development and function.
- Growth plate: areas of cartilage located at the ends of long bones in children and adolescents.
- Indeterminate growth: a biological process where an organism continues to grow throughout its life, rather than stopping at a genetically predetermined size.
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