Which of the following is a step within the common pathway of blood clotting?
A. Prothrombin is activated to thrombin.
B. Factor III combines with factor VII.
C. Factor XII converts inactive factor XI to active factor XI.
D. Calcium combines with factor IX.
Answer: A
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The appendicular skeleton includes bones of the thorax, spinal column, hyoid bone, bones of the middle ear, and skull
Indicate whether the statement is true or false.
The phase in the cardiac cycle when the mitral valve is closed and the aortic valve is open is the
A) atrial systole. B) early diastolic filling phase. C) late diastolic filling phase. D) systolic ejection phase. E) dicrotic phase.
Another name for the parietal pericardium is the
a. epicardium b. endocardium c. myocardium d. parietal pericardium is not known by another name
The bone can supply calcium to the plasma by what process?
A) filtration B) reabsorption C) resorption D) ossification E) calcification