23. Jason broke his finger playing football, while Sean tore the cartilage in his knee playing basketball. Which one will heal faster and why? A) Jason, bones have a blood supply and heal faster B) Jason, fingers bear less weight than knees do C) Sean, cartilage has a blood supply and heal faster D) Sean, knees can be immobilized casier than fingers B) Jason, fingers require fewer nutrients to repair because they are small Bone recycling allows the body to regulate what? A) the amount of sodium in the blood B) the amount of calcium in the blood C) the amount of sodium in the bone D) the amount of vitamin C in the blood E) the amount of vitamin D in the bone What two hormones are involved in regulating the blood calcium level? A) calcitonin and renin B) renin and aldosterone C) renin and PTH D) aldosterone and PTH E) PTH and calcitonin 24. 25. 26. How are osteocytes and osteoblasts related? A) Osteocytes become osteoblasts as the bone matures. B) Osteoblasts become osteocytes as the bone matures. C) Osteocytes and osteoblasts bave the same function, but work in the fetus. D) Osteocytes and osteoblasts work opposite each other. One builds up bone while the other absorbs it E) Osteocytes are mature bone cells while osteoblasts are a form of bone cancer osteocytes work in the adult and osteoblasts 27. Even when the growth plate disappears, the limbs will keep increasing in length. A) True B) False 28. Too much calcium in the bloodstream, a condition called hypercalcemia, can be very dangerous. The thyroid gland releases a hormone, calcitonin, when calcium is too high. How does calcitonin lower calcium levels in the blood? A) It reduces osteoclast activity and increases osteoblast activity B) It increases osteoclast activity and reduces osteoblast activity C) It reduces both osteoclast and osteoblast activity D) It increases both osteoclast and osteoblast activity sit calcium salts on the collagen frame during the development of bone from cartilage. B) False 29. Osteoclasts depos A) True 30. What criterion is used to categorize the skeleton into axial and appendicular? A) wbether the bones are weight bearing or not B) whether the bones lie on the midline or on a girdle C) whether the bones are flat or long D) whether the bones contain red bone marrow or yellow bone marrow E) whether the bones articulate with the pelvis or not 31. Which of the following is not part of the axial skeleton? clavicle 32 Thestp in ths the fomation ofa blood elot A) rib B) temporal C) vertebrae B) False 33. Samantha broke her cheekbone in an ice skating accident. Which bone did she break? A) temporal bone B) mandible C) maxilla D) zygomatic bone E) frontal bone 34. The thoracic vertebrae are associated with the ribs B) False A) True