Blood pressure is lowest in
A. arteries.
B. veins.
C. arterioles.
D. venules.
E. capillaries.
B
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The surgical neck of the humerus is the constricted region immediately adjacent to the head.
Answer the following statement true (T) or false (F)
At a PO2 of 70 mm Hg and normal temperature and pH, hemoglobin is ________% saturated with oxygen.
A) over 90 B) 10 C) 75 D) 25 E) 50
A recording of the heart structures using sound waves is termed:
A) echocardiography B) echocardiograph C) echocardiogram D) ultrasonography E) sonograph
The triads of a muscle fiber consist of ________.
A. two thick myofilaments and one thin myofilament B. two A bands and one I band C. two T tubules and one terminal cistern D. two thin myofilaments and one thick myofilament E. two terminal cisterns and one T tubule