When blood passes through systemic capillaries, the oxygen saturation of hemoglobin changes
A. from about 98% to about 75% saturated.
B. from about 40% to about 80% saturated.
C. from about 70% saturated to about 99% saturated.
D. from about 99% saturated to about 25% saturated.
A
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Which of the following characteristics of blood depends mostly on the ratio of RBCs to plasma volume?
a) total blood volume b) blood viscosity c) venous return d) clotting time e) immunoglobulin profile
The function of the appendicular muscles is to
A) support and position the bones of the skull, thoracic cage, and vertebral column. B) support, move, and brace the limbs.
Which chamber of the heart receives blood from the systemic circuit?
A) right atrium B) left atrium C) right ventricle D) left ventricle
Which of the following signs of hypovolemic shock is a relatively late sign?
A) increased heart rate B) cold, clammy skin C) rapidly falling blood pressure D) rapid, thready pulse