Aldosterone secretion may be stimulated by
A. ADH.
B. elevated potassium levels.
C. excess water intake.
D. elevated sodium levels.
E. low potassium levels.
B
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During the absolute refractory period, a stimulus of high intensity may trigger a nerve impulse.
Answer the following statement true (T) or false (F)
Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the
A) Endomysium. B) Perimysium. C) Sarcolemma. D) Sarcomere. E) Myofibrils
To increase blood flow to an adjacent capillary, the local controls that operate are:
increasing O2, decreasing CO2, decreasing pH decreasing O2, increasing CO2, decreasing pH decreasing O2, decreasing CO2, decreasing pH increasing O2, increasing CO2, increasing pH none of the choices are correct
If transpulmonary pressure were to suddenly decrease, predict the response by the lungs.
A. The lungs would not recoil and air would remain trapped in them. B. The lungs would adhere to the parietal pleura and would crumple like an accordion. C. The lungs would immediately collapse. D. The lungs would remain unchanged.