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 F.
A) Coronary sulcus
B) Interventricular sulcus
C) Ventricle
D) Ligamentum arteriosum
E) Atrium
Correct Answer:

Verified
Correct Answer:
Verified
Q15: Cardiac muscle cells obtain energy almost exclusively
Q16: Figure 21.2<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.2
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
Q21: Which event typically occurs at the start
Q22: Figure 21.4<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.4
Q23: The heart rate may be influenced or
Q24: Figure 21.5<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4856/.jpg" alt="Figure 21.5
Q25: The fibrous pericardium lies deep to the