Multiple Choice
The inherent ability of cardiac muscle tissue to contract in the absence of neural or hormonal stimulation is called ________.
A) threshold
B) systole
C) diastole
D) autorhythmicity
E) a cardiac pacemaker
Correct Answer:

Verified
Correct Answer:
Verified
Q99: Figure 21.4<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.4
Q100: Describe the differences between carditis, endocarditis, and
Q101: Which of the following conditions would cause
Q102: Externally, the posterior and inferior portions of
Q103: Which of the following is a unique
Q105: There are many interconnections between the arterial
Q106: Which of the following is true regarding
Q107: Which heart structure receives blood from the
Q108: If the cusps of an atrioventricular valve
Q109: Figure 21.2<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.2