Stress fractures result from which of the following types of loading?
A. acute loading
B. repetitive loading
C. both A and B
D. neither A nor B
B. repetitive loading
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Which of the following choices is FALSE? The chromophore
A) Absorbs energy from photons. B) Is a derivative of vitamin D. C) Is covalently linked to a member of the opsin gene family. D) Plays a role in photoreceptor sensitivity to different colors.
Which of the following is not true of veins?
a. Blood drains into them from venules. b. They carry blood back to the heart. c. They have a thicker tunica media than do arteries. d. Their innermost layer is called the tunica intima.
________ refers to the factors that oppose blood flow in the entire cardiovascular system.
A) Turbulence B) Vascular resistance C) Total peripheral resistance D) Viscosity E) Elastic rebound
The stroke volume is the total volume of blood ejected by both ventricles per minute
Indicate whether the statement is true or false