Final answer:
To answer the student's question, during an echocardiogram, the anterior and posterior cusps of the mitral valve are visualized. These cusps regulate blood flow between the left atrium and left ventricle.
Step-by-step explanation:
The student has asked which pulmonary cusps are visualized during an echocardiogram. The answer to the question is b. Anterior and posterior cusps. These are the two cusps of the mitral valve (also known as the bicuspid valve), which is located at the opening between the left atrium and left ventricle. The anterior medial cusp and the posterior medial cusp are the specific names of these cusps. The mitral valve is essential as it regulates blood flow from the left atrium to the left ventricle. During an echocardiogram, which is an ultrasound of the heart, these cusps can be observed as part of the mitral valve assessment.