Which choice best describes the function of the haversian (central) canals within bone?

Are needed by the body in large amounts in order to maintain good health

Andra has a family history of osteoporosis. her doctor advises her to eat foods rich in calcium. which foods should she add to her diet? a. fruits, especially grapes and berries b. unsaturated fats like olive and soybean oil c. beet greens, broccoli, and cheese

High blood pressure is best described as