A long bone increases in length until
A) death; bones grow as long as we are alive.
B) appositional growth starts.
C) expansion of the secondary ossification centers ends.
D) the body runs out of calcium.
E) the epiphyseal cartilage becomes ossified.
E) the epiphyseal cartilage becomes ossified.
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With regard to the healing of a skin wound, macrophages ___________.
A. release histamine to increase blood flow to the area B. produce and secrete collagenous fibers C. phagocytize and digest tissue debris D. stimulate epithelial cells to multiply E. make capillaries more permeable, allowing white blood cells to migrate into the area
Bone length is increased primarily by:
a. appositional growth b. interstitial growth c. periosteal growth d. intermembranous growth
Which of the following vitamins is mismatched with its function?
A. vitamin D - bone growth B. vitamin A - rhodopsin synthesis C. folate - synthesis of clotting factors D. vitamin C - collagen synthesis E. vitamin B12 - red blood cell production
A blood pH higher than 7.45 is called
A. buffering. B. normal. C. alkalosis. D. acidosis.