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        | Blood leaving the left atrium goes through which valve to the left ventricle? |  | Definition 
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        | Pulmonary circulation is the pathway of blood between the heart and |  | Definition 
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        | The left ventricular wall of the heart is thicker than the right wall in order to |  | Definition 
 
        | pump blood with greater pressure. |  | 
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        | Blood within the pulmonary veins returns to the: |  | Definition 
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        | contains a lubricating fluid called serous fluid |  | 
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Blood is carried to capillaries in the myocardium by way of:   |  | Definition 
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        | Normal heart sounds are caused by which of the following events? |  | Definition 
 
        | closure of the heart valves |  | 
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        | Cardiac muscle cells are like skeletal muscle cells in that they: |  | Definition 
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        | Small muscle masses attached to the chordae tendineae are the: |  | Definition 
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        | Which vessels of the heart receives blood during right ventricular systole? |  | Definition 
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