Local potentials are ________, whereas action potentials are ________
A) graded; all or none
B) produced by voltage-regulated channels; produced by gated channels
C) nondecremental; decremental
D) self-propagating; local
E) irreversible; reversible
A
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During the plateau phase of a cardiac muscle cell's action potential, the membrane stays
A. depolarized as potassium exits and calcium enters. B. depolarized as potassium enters and calcium exits. C. repolarized as sodium enters and calcium exits. D. hyperpolarized as sodium and calcium exit. E. hyperpolarized as potassium enters and calcium exits.
The sagittal suture is a(n)
A. synchondrosis. B. fibrous joint. C. synovial joint. D. cartilaginous joint. E. amphiarthrosis.
Inhibiting phosphodiesterase would cause the photoreceptor to undergo ________.
A. EPSPs B. repolarization C. hyperpolarization D. depolarization
Which of the following nutrients is absorbed by the lacteals of the small intestine?
A. Water-soluble vitamins B. Triglycerides C. Glucose D. Minerals E. Amino acids