Which of the following best describes the resting membrane potential (RMP)?
A) The extracellular environment is negatively charged.
B) It has a voltage of about +75 mV.
C) The intracellular environment is negatively charged.
D) It is dependent upon the absorption of potassium ions by the muscle fiber.
E) The intracellular environment has more positively charged sodium.
C
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When pregnant, a woman has an increased sensitivity to the hormone angiotensin
Indicate whether this statement is true or false.
One of the major physiological factors that triggers thirst is ________.
A) a dry mouth from high temperatures B) becoming overly agitated C) drinking caffeinated beverages D) a rise in plasma osmolality
Which of the following is not true of basophils?
A) constitute about 1 percent of WBCs B) promote inflammation C) granules contain histamine D) contain dense blue stained granules in the Wright stain E) increased production during parasitic infections
What is the origin of lymphatic vessels?
A) veins of the blood vascular system B) the organs of the digestive system C) arteries of the blood vascular system D) the glands of the endocrine system