The lower chambers of the heart are called the:

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Restating the question and the available options helps frame the analysis: The question asks for the term used for the lower chambers of the heart, and the options are: bicuspids, pericardia, ventricles, and atria.

Option 1: bicuspids. While 'bicuspid' is a term associated with a heart valve (the mitral valve) or in some contexts a type of tooth, it is not the name for the lower heart chambers. This option confuses a structure involved in valve anatomy or dentistry with the actual chamber names.

Option 2: pericardia. The word 'pericardia' refers to the pericardium, which is the sac that encloses the heart. It is a surrounding structure, not one of the heart’s chambers. This choice mistakes a membrane for a chamber.

Option 3: ventricles. This term designates the two lower chambers of the heart—the left and right ventricles. They receive blood from the atria and pump it out to the lungs and to the rest of the body, respectively. This option correctly identifies the lower chambers by their proper anatomical name and function.

Option 4: atria. These are the upper chambers of the heart (the right atrium and left atrium). They receive blood from the body and lungs and then pass it to the ventricles. This option describes the upper chambers, not the lower ones.

In summary, the incorrect options either name a different anatomical structure (pericardium), a term linked to valves or teeth (bicuspid), or describe the upper chambers (atria). The term that correctly names the lower chambers is ventricles.

hk_264_120258_248438 Chapter 8 Self Test: Circulatory (Cardio/vascular) System

The lower chambers of the heart are called the:

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