Bony -1 Stapes in facture repait could this be possible for rural kids who drink
ID: 138928 • Letter: B
Question
Bony -1 Stapes in facture repait could this be possible for rural kids who drink fresh cow's milk but unlikely for urban kids who drink milk from the grocery store? Why do Eskimos northern Canadian and American Indian tribes, who live in areas of complete darkness during certain times of the year, not have problems with bones breaking? 4. How would a vitamin D deficiency increase the risk of bone fracture? Why 5. Astronauts and postmenopausal women are known to share an increased risk of bone fracture because of osteoporosis. Explain how their bones are weak- ened and why that is not likely for the unfortunate soccer players. Read more about this system in Daniel Chiras, Human Biology, 5th edition, Chapter 12; and in Robert Clark, Anatomy and Physiology, Understanding the Human Body, Chapter 7) CASESSFOR UNDERSTANDTING THE HUMAN BooyExplanation / Answer
4. A diet that includes adequate calories and nutrients needed to maintain bone, calcium, and vitamin D must be consumed. Vitamin D is necessary for calcium absorption and for bone mineralization. Also, dietary calcium and vitamin D must be adequate to maintain bone remodelling and body functions. in rural areas, kids drink fresh milk or raw milk is not fortified with nutrients . in fortified milk, it contains vitamin A and D which is fat-soluble vitamins to promote calcium absorption.but in case of fresh milk vitamin A and D is largely lost with the removal of milk fat so the children from rural areas have high risk for vitamin D deficiency in comparing with urban kids. fortified milk provides 400 international units/quart. people living in northern pole like Eskimos do not rely on sun but mainly consume vitamin D as they have less chance of the exposure of sun .they have their own ancestral diet for vitamin D. in regards to the Eskimos their diet like whale, seal, walrus blubber (vitamin D saturated fat) along with eggs and trout are vitamin D rich diet.so they have less chance of vitamin D deficiency. 5. as immobile patients have progressive bone loss astronauts also have long periods of immobility and in addition to zero gravity which negatively affects their bone cell function.they have high risk for bone fracture in their later life mainly because of their lifestyle.. but in case of postmenopausal women, the withdrawal of estrogens at menopause causes an accelerated bone resorption that continues during the postmenopausal years. women develop osteoporosis more frequently and extensively because of lower peak bone mass because of age. but in case of soccer player bone fracture is not because of any pathological condition but because of extreme physical activity.