The vitamin that is necessary for osteoblasts to produce collagen is vitamin __________ .
A. vitamin C
B. vitamin K
C. vitamin D
D. vitamin B3
Answer: A. vitamin C
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Define mediastinum
A) The mediastinum is the region that contains each lung. B) The mediastinum is the region between the two pleural cavities that contains the heart, along with the great vessels, thymus, esophagus, and trachea. C) The mediastinum is the region anterior to the sternum that is pressed during cardiac pulmonary resuscitation. D) The mediastinum is the region from the diaphragm to the superior border or the rib cage and from each lateral side of the rib cage. E) The mediastinum is the serious membrane that surrounds the heart.
The two major subdivisions of the ECF are the
A) ICF and plasma. B) interstitial fluid and plasma. C) lymph and plasma. D) serous fluids and lymph. E) interstitial fluid and CSF.
The fatty tissue surrounding the kidneys is important because it ________
A) produces vitamin D and other chemicals needed by the kidney B) stabilizes the position of the kidneys by holding them in their normal position C) is necessary as a barrier between the adrenal glands and kidneys D) ensures adequate energy for the adrenal glands to operate efficiently
The innermost layer of a blood vessel is the tunica adventitia.
a. true b. false