6. Bones & Skeletal Tissue

Why do extended periods of inactivity cause degenerative changes in the skeleton?

Which of the following conditions would you possibly observe in a child who is suffering from rickets? (a) abnormally short limbs, (b) abnormally long limbs, (c) oversized facial bones, (d) bowed legs, (e) weak, brittle bones

Frank does not enter puberty until he is 16. What effect would you predict this will have on his stature? (a) Frank will probably be taller than if he had started puberty earlier. (b) Frank will probably be shorter than if he had started puberty earlier. (c) Frank will probably be a dwarf. (d) Frank will have bones that are heavier than normal. (e) The late onset of puberty will have no effect on Frank's stature.