The membrane potential of cardiac muscle cells at rest is about ____ mV
a. -110
b. -90
c. -70
d. -50
e. -30
B
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Striated involuntary muscle tissue found in the heart is ________
A) smooth muscle B) skeletal muscle C) dense regular D) cardiac muscle E) dense irregular
Which of the following statements concerning the hormone atrial natriuretic peptide is FALSE?
A) Atrial natriuretic peptide is produced by cells in the heart. B) Atrial natriuretic peptide increases aldosterone secretion. C) Atrial natriuretic peptide promotes sodium loss at the kidneys. D) Atrial natriuretic peptide suppresses ADH secretion. E) Atrial natriuretic peptide reduces the sensation of thirst.
The normal heart rate for an adult is ________ beats per minute
A) 90-170 B) 60-100 C) 10-30 D) 70-120
The preferred blood type for transfusing to a person with blood type A- is ________, but when it is unavailable, blood type(s) ________ may be used.
A. A+; AB- B. A+; O-, O+ C. A-; A+ D. A-; O-