What effect does inhibition of osmoreceptors have on ADH secretion and thirst?
A) increased ADH secretion and increased thirst
B) increased ADH secretion and suppressed thirst
C) decreased ADH secretion and increased thirst
D) decreased ADH secretion and suppressed thirst
E) increased ADH secretion but no change in thirst
Answer: D
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What does the T wave of the electrocardiogram (ECG) represent?
atrial repolarization ventricular depolarization ventricular repolarization atrial depolarizaton
After hyperventilating for several minutes, a person may develop short periods of apnea because
A. oxygen in the lungs has not had time to diffuse into the blood. B. blood pH would drop and inhibit inspiration. C. blood pH will rise and stimulate expiration. D. the level of oxygen has increased and inhibits the inspiratory center. E. the level of CO2 decreases below the level necessary to stimulate the inspiratory center.
Sensory receptors that monitor the position of joints are called
A) Nociceptors. B) Thermoreceptors. C) Baroreceptors. D) Proprioceptors. E) Chemoreceptors.
Which of the following is true of the pulmonary pressures?
A. Because of pneumothorax, intrapleural pressure equilibrates with atmospheric pressure. Without the positive force of alveolar pressure pushing the lung outward, the lung collapses due to elastic recoil forces. B. Intrapleural pressure is always positive so that the pleural membranes remain in contact. C. An increase in transpulmonary pressure creates a larger collapsing pressure across the lungs, which is accompanied by the contraction of the lungs (alveoli). D. The difference between intra-alveolar pressure and atmospheric pressure is the pressure gradient that drives ventilation.