anatomy of the heart Word Scramble
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Question | Answer |
Apex | located at the fifth intercostal space at the midclavicular line; this represents the tip of the left ventricle |
Base | located at the second intercostal space behind the sternum on the posterior aspect of the heart; it lies adjacent to the vertebral bodies of T6 through T9. |
Endocardium | A thin outer layer of tissue that lines the inside surface of the heart and valves. |
Epicardium | the outer layer of the cardiac wall that covers the surface to protect against trauma or infection. |
Myocardium | the thick layer of muscle of the geart that provides the pumping force for the ventricles |
Pericardium | a double walled connective tissue sac (fibrous layer and serous layer) that surrounds the heart and protects it from trauma or infection. |
Right atrium | receives venous blood from the superior and inferior vena cava. |
Right ventricle | recieves venous blood from the right atrium through the tricupid valve. pushes blood into the pulmonary artery and pulmonary circulation. |
Left atrium | receives arterial blood from the pulmonary veins. |
left ventricle | receives blood from the left atrium. pushes vlood into the aorta and the systemic circulation. |
Tricuspid valve | prevents right ventricular blood from going back into the right atrium. |
pulmonic valve | prevents vlood from returning to the right ventricle. |
Mitral valve | prevents left ventricular blood from returning to the left atrium. |
aortic valve | prevents the systemic vlood from returning to the left ventricle. |
atrioventricular valves | blood from each atria flows to each ventricle through these valves. the valves close upon ventricular contraction to avoid backflow. |
Semiulnar valves | blood from each vventricle flows out of the heart through these valves. the valves close upon the suvsequent diastole to avoid backflow of the blood into the heart. |
Aorta | Largest artery which carries the total cardiac output. divisions include the carotids, sublavians, and descending aorta. |
Ascending Aorta | provides blood to the head, neck, and arms. |
Descending aorta | provides blood to the lower body and visceral tissues. |
superior vena cava | the primary vein that drains venous blood from the head, neck, and upper body into the right atrium. |
Inferior vena cava | the primary vein that drains venous blood from the lower body and viscera into the right atrium. |
Pulmonary artery | the primary artery that carries blood to the lungs from the right ventricl. |
Created by:
dmckoy23
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