Structure H is the
A) retina.
B) sclera.
C) choroid.
D) ciliary body.
E) cornea.
C) choroid.
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Pulmonary surfactant contributes to lung stability by ____________________ surface tension
Fill in the blank(s) with correct word
Which of the following organs does NOT contain lymphatic tissue?
A. Thymus B. Pharyngeal tonsils C. Liver D. Lingual tonsils E. Spleen
What is the effect of sympathetic innervation to the lungs?
A. Increased activity of the mucociliary elevator B. Dilation of bronchioles C. Contraction of smooth muscle in the bronchioles D. Constriction of bronchioles E. Increased diameter of the bronchi
The fraction of inspired oxygen (FIO2) increases with:
A) increased tidal volume. B) forceful inhalation. C) supplemental oxygen. D) an increase in respirations.