The amount of sodium reabsorbed is controlled through the __________ system
Fill in the blank(s) with correct word
renin–angiotensin–aldosterone
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Each of the following factors affects the rate of external respiration except the
A) PO2 of the alveoli. B) PCO2 of the blood. C) thickness of the respiratory membrane. D) PN2 of the alveoli. E) solubility of oxygen in plasma.
Which statement is true regarding the location of the trachea?
A. It lies superior to the esophagus, inferior to the larynx, and superior to the primary bronchi of the lungs. B. It lies posterior to the esophagus, inferior to the larynx, and superior to the primary bronchi of the lungs. C. It lies anterior to the esophagus, inferior to the larynx, and inferior to the primary bronchi of the lungs. D. It lies anterior to the esophagus, inferior to the larynx, and superior to the primary bronchi of the lungs. E. It lies superior to the esophagus, superior to the larynx, and superior to the primary bronchi of the lungs.
How many pulmonary arteries empty into the right atrium of the heart?
A. 0 B. 1 C. 2 D. 4 E. 8
Relaxation of the smooth muscle within the walls of bronchioles leads to ________.
Fill in the blank(s) with the appropriate word(s).