The diaphragm flattens and moves inferiorly during inspiration
Indicate whether the statement is true or false
TRUE
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The muscle that makes up the calf of the leg is the
A. soleus. B. popliteus. C. plantaris. D. tibialis posterior. E. gastrocnemius.
What is another name for the hip bone?
A. Tibia B. Scapula C. Humerus D. Ulna E. Os coxae
Unlike inspiration, expiration is a passive act because no muscular contractions are involved. Expiration, however, depends on two factors. Which of the choices below lists those two factors?
A) the recoil of elastic fibers that were stretched during inspiration and the inward pull of surface tension due to the film of alveolar fluid B) the expansion of respiratory muscles that were contracted during inspiration and the lack of surface tension on the alveolar wall C) the negative feedback of expansion fibers used during inspiration and the outward pull of surface tension due to surfactant D) combined amount of CO2 in the blood and air in the alveoli
Which of the following drug classes would be useful for smoking cessation products?
A) sympathomimetic agents B) acetylcholinesterase inhibitors C) nicotinic agents D) parasympathomimetic agents (muscarinic agents)