A shift of the resting transmembrane potential toward 0 mV is called
A) potential difference.
B) depolarization.
C) hyperpolarization.
D) polarization.
E) repolarization.
B
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Curve B below represents the oxygen-hemoglobin dissociation curve for normal body temperature, arterial hydrogen ion concentration, and DPG concentration
A. Curve A may represent the dissociation at higher than normal arterial H+ concentration. B. Curve C may represent the dissociation at lower than normal body temperature. C. Curve A may represent the dissociation at very low 2,3 diphosphoglycerate levels. D. Curve C may represent the dissociation at lower than normal arterial H+ concentration. E. Curve A may represent the dissociation at higher than normal body temperature.
Which of the following is the largest internal organ in the body?
A. Pancreas B. Gastric gland C. Liver D. Gallbladder
Parasympathetic stimulation of the __________ contractile cells shortens the __________ phase of the action potential by reducing the slow inward current carried by Ca2+
Fill in the blank(s) with correct word
What gives bone its flexibility?
A. Inorganic salts B. Collagen fibers C. Trabeculae D. Elastic fibers E. Yellow bone marrow