Baroreceptors in our arteries respond to ________.
A. an increase in blood pressure
B. an increase in cardiac output
C. a decrease in blood pressure
D. an increase in both blood pressure and cardiac output
Answer: A. an increase in blood pressure
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The sphincter muscle located between the small intestine and the large intestine is the ________.
Fill in the blank(s) with the appropriate word(s).
In a mixed nerve
A. some axons transmit sensory information and others transmit motor information. B. individual axons transmit both sensory and motor information. C. chemical synapses occur along with electrical synapses. D. astrocytes are interspersed with ependymal cells.
A faster-than-normal heart rate is called
A) fibrillation. B) premature contractions. C) tachycardia. D) bradycardia. E) None of the answers is correct.
Biot respirations are characterized by:
A) slow, shallow irregular respirations or occasional gasping breaths. B) an irregular pattern of breathing with intermittent periods of apnea. C) deep, gasping respirations that are often rapid but may be slow. D) increased respirations followed by apneic periods.