Which chemical forms the meshwork of the blood clot?
A) arachidonic acid
B) von Willebrand factor
C) thromboxane A2
D) thrombin
E) fibrin
Ans: E) fibrin
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What type of tissue is pseudostratified tissue?
a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue
All of the following factors would be expected to increase a person's vital capacity except
A. getting regular exercise. B. being taller. C. being in good general health. D. getting older. E. being male instead of female.
A heart valve opens and closes due to
a. being pulled by the heart muscle b. pressure differences on the valve's two sides c. Na+ and K+ fluxes during ventricular depolarization d. turbulent flow in the atria and ventricles e. none of the above
Evolutionary (Darwinian) medicine traces some of our diseases to our evolutionary past
Indicate whether the statement is true or false