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Hace 4 horas · Throughout life, cells called osteoclasts break down old bone while new bone is formed by cells called osteoblasts. The activity of these cells is generally constant, but after the age of 50 or so, there are gradually fewer osteoblasts than osteoclasts. Osteoporosis develops when the balance tips too far in favour of the osteoclasts.
Hace 15 horas · Milk is packed with calcium, vitamin D, protein, and array of vitamins. It is considered healthy and have many health benefits. Let's find out if milk helps benefit your bone health. "Finish your glass of milk" is something we all heard while growing up. Ever wondered why our mothers and ...
Hace 1 día · A mammal (from Latin mamma 'breast') is a vertebrate animal of the class Mammalia (/ m ə ˈ m eɪ l i. ə /).Mammals are characterized by the presence of milk-producing mammary glands for feeding their young, a neocortex region of the brain, fur or hair, and three middle ear bones.These characteristics distinguish them from reptiles and birds, from which their ancestors diverged in the ...
Hace 1 día · Phosphorus. Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram (compare ...
