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Laboratory 20. Heart
Step 21. The Pulmonic Valve

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At the superior aspect of the right ventricle, examine the opening of the pulmonary trunk [probe passes out through the trunk]. This opening is guarded by the pulmonic valve, which is made up of the following three cusps, named also for their anatomical locations: an anterior cusp, a right cusp, and a left cusp (Figure 20.7).

Links and References:
Grant's: 1.64
Netter: 208
Rohen/Yokochi: 243