The period of time in which the myocardium is insensitive to further stimulation is called the
A. absolute refractory period.
B. hyperpolarization period.
C. AV period.
D. SA period.
E. ectopic focus.
A
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The intracellular digestive organelle of a cell is the ________.
A. lipochrome B. microtubule C. rough endoplasmic reticulum D. smooth endoplasmic reticulum E. lysosome
If a thyroid tumor secreted an excessive amount of calcitonin, we would expect ________.
A. an elevated level of osteoclast activity B. a rise in blood calcium concentration C. increasingly brittle bones D. an elevated level of osteoblast activity E. a reduced rate of endochondral ossification
Which joint actions of the foot are used to best engage the tibialis anterior?
a. Dorsiflexion and eversion b. Plantarflexion and eversion c. Dorsiflexion and inversion d. Plantarflexion and inversion
Regions of the stomach include all of the following except
A) cardia. B) body. C) pylorus. D) ileum. E) fundus.