Each of the following bones contributes to the formation of the cranial base EXCEPT the
A. occipital.
B. sphenoid.
C. ethmoid.
D. temporal.
E. parietal.
Ans: E. parietal.
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Which of the following would be a normal response of the cardiovascular system to a decreased frequency of action potentials arising from the baroreceptors?
a) Increased systemic vascular resistance b) Increased parasympathetic stimulation c) Decreased heart rate d) Decreased stroke volume e) Decreased cardiac output
The primary stimulus for the release of erythropoietin is
A) hypoxemia, low oxygen levels in the tissues, and low blood pressure. B) hypoxemia and low oxygen levels in the tissues. C) hypoxemia only. D) low oxygen levels in the tissues only. E) low blood pressure only.
The plasma protein responsible for the synthesis of antibodies is ___
a. fibrinogen. b. prothrombin. c. gamma globulin. d. Globulin.
Which of the following statements explain why the number of bones vary with age?
A. Sesamoid bones form within tendons in response to stress. B. Some bones fuse together with age. C. Bones are lost due to deterioration of calcium salts.