A change in the resting membrane potential has the following characteristics (non-propagated, graded, can summate). This type of change can
A. be a local potential.
B. be an action potential.
C. be a consequence of an increase in the permeability to Na+.
D. result in repolarization.
E. be a local potential and a consequence of an increase in the permeability to Na+.
E
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The narrow inferior part of the uterus is called the ________.
A. body B. isthmus C. fundus D. myometrium
Why is it sometimes advantageous to inject drugs intramuscularly rather than subcutaneously or intravenously?
A. Drugs injected into muscles are absorbed very rapidly into the bloodstream. B. Drugs may be injected more superficially if they are injected into muscle bellies. C. Skeletal muscle tissue contains more mitochondria so drugs are metabolized more quickly in muscles. D. Drugs injected into muscles are absorbed gradually into the bloodstream. E. Smaller quantities of drugs are more effective when injected into muscle bellies.
A hypertonic solution
A) would cause cells to swell when placed in the solution. B) causes water to rush inside cells. C) has a lower osmotic pressure than do the cells in the solution. D) has a greater concentration (number) of solute particles than do the cells in the solution.
Match the vitamin with its associated disease.A. ScurvyB. Night blindnessC. BeriberiD. PellagraE. Pernicious anemiaVitamin B12
Fill in the blank(s) with the appropriate word(s).