A patient with high blood pressure is put on a vasodilator, which causes blood vessels to dilate. One of the side effects will be pale, cool skin.
Answer the following statement true (T) or false (F)
False
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If the charge difference across the plasma membrane is decreased,
A. the potential difference across the plasma membrane does not change. B. the membrane potential is more positive. C. the change is called hyperpolarization. D. negative proteins can leave the cell. E. the membrane potential is more negative.
Both lymph and venous blood flow are heavily dependent on ________.
A) the pumping action of the heart B) skeletal muscle contractions and differences in thoracic pressures due to respiratory movement C) contraction of the vessels themselves D) two-way valves
When blood pressure receptors sense a loss of blood pressure, they ________ their firing rate.
A) increase B) decrease
Neither follicle stimulating (FSH) hormone nor testosterone alone can stimulate significant sperm production, whereas when they act together, the testes produce some 300,000 sperm per minute. This is an example of which principle regarding hormones?
A. Hormone clearance B. The antagonistic effect C. The permissive effect D. The synergistic effect E. The cascade effect