The P wave is an indication of __________.

Identify the pericardial cavity. 

Identify the structure with the white pin. (some pins are next to an opening to be identified)

Identify the myocardium. 

The antigens for blood typing are found __________.

The left ventricle is bulkier than the right ventricle. 

Match each letter to it’s proper location on the thorax where heart sounds can be heard.     

Bradycardia is increased heart rate.

Identify the structure with the white pin. (some pins are next to an opening to be identified)

The SA node is the pacemaker of the heart.