Which of the following is NOT true of muscular atrophy?
A. It is irreversible.
B. It can be caused by disuse.
C. It can be caused by denervation.
D. Transcutaneous stimulation can help prevent it.
E. Muscle fibers are replaced by connective tissue.
A
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The repolarization of cardiac muscle is due to _______
A) potassium exiting the cell B) potassium entering the cell C) sodium exiting the cell D) sodium entering the cell
The superior mesenteric ganglion receives preganglionic sympathetic neurons from the ________ segments of the spinal cord.
A. T10-T12 B. T7-T9 C. T2-T6 D. T5-T9 E. T1-T4
Which solution would have the lowest concentration of hydrogen ions?
A) Solution with a pH of 5 B) Solution with a pH of 8 C) Solution with a pH of 3 D) Solution with a pH of 10
Local potentials are ________, meaning they vary in magnitude according to the strength of the stimulus
A) self propagating B) graded C) excitatory D) inhibitory E) stabile