The afterpotential is a period
A) of increased depolarization.
B) of hyperpolarization.
C) when the cell is completely insensitive to additional stimuli.
D) when a second action potential occurs.
Answer: B) of hyperpolarization.
You might also like to view...
Mediated transport is required in order for glucose, amino acids, and fatty acids to pass into cells because none of these substances can diffuse through plasma membranes.
Answer the following statement true (T) or false (F)
What is the definition of "muscle tone"?
A. The sound made by a muscle at rest B. The tension in a muscle that is only due to the passive resistance of elastic structures C. The resistance of muscle to continuous passive stretch D. The maximum contraction strength that a muscle is capable of E. The average length of the muscle fibers in a given motor unit
The resting membrane potential of a cell is –85 mV. The intracellular and extracellular concentrations of several ions are indicated below, as is the calculated Nernst equilibrium potentials (E) for these ions
The membrane has channels for Na+, K+, Cl- and Ca++. The conductance of the membrane is the greatest for which ion? A. Na+ B. K+ C. Cl- D. Ca++
Dietary amino acids in a meal that are in excess of the body's need to make protein are:
A. converted to glucose in the liver. B. converted to fatty acids in the liver. C. excreted without being absorbed. D. converted to fatty acids in adipose cells. E. burned for fuel by cells of the nervous system.