The type(s) of muscle cell that has/have the ability to divide, and regenerate after injury, is/are ________ muscle(s).
A) smooth
B) skeletal
C) cardiac
D) skeletal and smooth
E) cardiac and skeletal
A) smooth
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If an increase in extracellular potassium would depolarize a neuron, what would be the effect of the increased potassium?
A) It would decrease the flow of sodium out of the cell. B) It would increase the flow of sodium out of the cell. C) It would change the membrane potential to a more negative value. D) It would change the membrane potential to a less negative value.
A person who has symptoms of paleness and chronic fatigue is suspected of having anemia. To investigate this suspicion further, it would be most helpful to measure ________
A) differential WBC count B) total WBC count C) hematocrit
Decerebrate posturing is characterized by:
A) flexion of the arms and extension of the legs. B) inward flexion of the wrists and flexed knees. C) extension of the arms and extension of the legs. D) pulling in of the arms toward the core of the body.
During reabsorption in the proximal convoluted tubule, most of the amino acids, glucose, Na+ ions, K+ ions, and Ca2+ ions are removed from the tubular fluid by ________ mechanisms.
A. passive transport B. counter transport C. active transport D. osmotic