Multiple Choice
Figure 21.2
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label L.
A) Aorta
B) Superior vena cava
C) Pulmonary trunk
D) Pulmonary vein
E) Brachiocephalic trunk
Correct Answer:
Verified
Correct Answer:
Verified
Q11: Because cardiac muscles are mechanically, chemically, and
Q12: The _ are a series of irregular
Q13: Figure 21.1<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.1
Q14: Which vessel delivers venous blood from the
Q15: Cardiac muscle cells obtain energy almost exclusively
Q17: Figure 21.5<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.5
Q18: The rapidly depolarizing cells, called pacemaker cells,
Q19: Figure 21.4<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.4
Q20: Figure 21.2<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.2
Q21: Which event typically occurs at the start