The audible heart sounds are caused by the contraction of the atria and ventricles.
a. true
b. false
b. false
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The formation of lymph increases as a result of
A. decreasing volume of tissue fluid. B. decreasing protein concentration in tissue fluid. C. increasing hydrostatic pressure in tissue fluid. D. increasing osmotic pressure in blood capillaries.
What are the two determinants of cardiac output?
a. size of the ventricles and stroke volume b. size of the heart and blood pressure c. blood pressure and heart size d. heart rate and ventricular volume e. heart rate and stroke volume
Neurons must be provided with a reliable supply of glucose because they are __________.
a. involved primarily with transmitting nerve impulses b. covered with myelinated fibrous sheaths c. usually unable to metabolize other molecules d. primarily located in the brain
In a graph of wave summation, the tension level returns to baseline between each peak of force.
Answer the following statement true (T) or false (F)