Marcus exhales normally; then, using forced expiration, he exhales as much air as possible. The volume of air still remaining in his lungs is called ________.
A. inspiratory reserve volume
B. vital capacity
C. tidal volume
D. residual volume
E. expiratory reserve volume
Answer: D
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A) mitochondrion. B) nucleus. C) nucleolus. D) Golgi apparatus. E) proteasome.
What type of epithelium occurs in the mucous membrane of the trachea?
A) simple columnar cells B) transitional epithelium C) pseudostratified ciliated columnar D) stratified squamous epithelium
Which do not belong to the respiratory zone of the respiratory system?
A. Pulmonary alveoli B. Respiratory bronchioles C. Alveolar ducts D. Terminal bronchioles E. Alveolar sacs