Which contraction occurs when you try (unsuccessfully) to move a wall?
A. Isometric
B. Isotonic
Answer: A
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Blood moves into and then out of a heart chamber because
A. it moves along its pressure gradient, and that gradient depends on contraction and relaxation during the cardiac cycle. B. it is under constant pressure, but its movement is dictated by the control of valve openings and closures. C. the veins and arteries constrict and dilate to propel and attract blood. D. All of the choices are correct.
What part of the vulva contains sebaceous glands?
A) labia minora B) mons pubis C) clitoris D) vestibule
Which of the following is a contraceptive method that not only prevents fertilization but also provides protection against sexually transmitted diseases?
A. Oral contraceptives B. Diaphragm C. Spermicidal agents D. Condom
The ________ root of a spinal nerve consists of motor neuron axons.
Fill in the blank(s) with the appropriate word(s).