What cardiac disorder is characterized by the death of myocardial tissue due to ischemia?
A. Angina pectoris
B. Myocardial infarction
C. Congestive heart failure
D. Atherosclerosis
Answer: B
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Fibers of the vagus nerve end very near or within their target organs.
Answer the following statement true (T) or false (F)
The process by which a single cell duplicates itself is known as ____
a. cellular respiration b. cellular reproduction c. anaerobic respiration d. aerobic respiration
Two neighboring neurons are at rest. Neuron A has a resting membrane potential of -80mV, Neuron B has a resting membrane potential of -70mV. Which is likely to be TRUE?
A. Neuron A has more Na+ channels open than Neuron B. B. Neuron B has more K+ channels open than Neuron A. C. Neuron A has more K+ channels open than Neuron B. D. Neuron B has more Na+ channels open than Neuron A. E. None of the answer choices are correct.
Cartilage tissues are likely to be slow in healing following an injury because
A) chondrocytes cannot divide. B) chondrocytes do not have direct blood supplies. C) cartilage cells are immersed in fluids. D) the intercellular material is semisolid.