Which term describes the volume of air that remains in the lungs after forced expiration?
A) Inspiratory reserve volume
B) Tidal volume
C) Expiratory reserve volume
D) Residual volume
Answer: D
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Which of the following is an accurate comparison of skeletal muscle to smooth muscle?
A. Smooth muscle contracts more slowly but relaxes more rapidly. B. Smooth muscle contracts more rapidly but relaxes more slowly. C. Smooth muscle contracts and relaxes more slowly. D. Smooth muscle consumes more ATP to maintain a given level of muscle tension. E. Smooth muscle depends on a nerve fiber to supply the calcium needed for contraction.
Which respiratory organ has a cardiac notch?
A) right lung B) left lung C) right primary bronchus D) left primary bronchus E) diaphragm
The postganglionic fibers that connect an sympathetic ganglion and carry fibers that innervate glands and smooth muscle of the body wall or limbs are the
A) white rami communicans. B) gray rami communicans. C) posterior ramus. D) anterior ramus. E) dermatomes.
Which of the cranial nerves is named for the fact that it "wanders," that is, innervates structures throughout the thorax and abdomen?
A) VIII B) IX C) X D) XI E) XII