In mammals, contraction of the ciliary muscle of the eye leads to
a. decreased pupil size.
b. increased pupil size.
c. increased curvature of the lens.
d. decreased curvature of the lens.
e. squinting.
C
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A patient was administered drugs to reduce her heart rate. Which of the following conditions was she likely to have experienced, and what other factor could be altered to enhance the current treatment?
A. The patient most likely has hypertension, and stimulation of vasoconstriction would also help lower her blood pressure. B. The patient most likely has hypertension, and stimulation of vasodilation would also help lower her blood pressure. C. The patient most likely has low blood pressure, and stimulation of vasodilation would also help increase her blood pressure. D. The patient most likely has low blood pressure, and stimulation of vasoconstriction would also help increase her blood pressure.
Callie is a world class marathon runner. Which of the descriptions about her dominant type of skeletal muscle is FALSE?
A. They have a well-developed blood supply. B. They are well adapted to anaerobic activity. C. They split ATP slowly. D. They have low glycogen stores. E. They have large deposits of myoglobin.
Typically, joints that are structurally cartilaginous are functionally
A. synarthroses. B. amphiarthroses. C. diarthroses.
If a person is in anatomical position, which of the following statements would be true?
A. Their head is turned to the right. B. Their head is turned to the left. C. Their palms are facing forward. D. Their arms are raised above their head. E. They are lying down, face up.