These blank diagrams may be helpful for identification of the structures required for both lecture and lab.  These may also be helpful for practicing your spelling.  Good Luck!

Figure 18.1 (location of heart in mediastinum)

Figure 18.4 (heart--external, anterior view)

Figure 18.4 (heart--external, posterior view)

Figure 18.4 (heart--internal view)

Figure 18.5 (systemic and pulmonary circuits)

Figure 18.14 (cardiac conduction system)

Figure 18.19 (heart sounds)