Which of the following helps return blood to the heart?
A. Valves in the arteries
B. Positive intrathoracic pressure
C. Capillary action
D. Contracting skeletal muscles
Answer: D
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Which of the following anatomical terms refers to the front of the elbow?
a) olecranal b) antecubital c) carpal d) digital e) antebrachial
In which condition is the quantity of circulating platelets less than normal?
A. Anemia B. Thrombocytopenia C. Leukemia D. Polycythemia
________ is an autoimmune disease that severely impairs renal function.
Fill in the blank(s) with the appropriate word(s).
During strenuous exercise, blood flow increases to
a. the heart because of local control factors b. the brain because of reflex control factors c. the skeletal muscles because of local control factors d. both a and c e. none of the above; blood flow remains fairly constant to these organs