BIO 117 HONDROS EXAM 3 QUESTIONS &
VERIFIED ANSWERS GRADED A LATEST 2024
The apex of the heart is located - ANSWER-5th intercostal space
Which layer of the heart allows it to act as a pump? - ANSWER-Myocardium
What is the apex of the heart? - ANSWER-The tip of the heart, pointing down towards the left 5th intercostal space.
Which layer of the heart wall contains the epicardium? - ANSWER-Pericardium
What surrounds the heart? - ANSWER-Pericardium
What is related to the mitral valve (tricuspid valve)? - ANSWER-Bicuspid valve
Which of the following contains oxygenated blood? - ANSWER-Left Atrium, Pulmonary veins, Aorta
Which of the following contains deoxygenated blood? - ANSWER-Superior Vena Cava, Right Atrium, Pulmonary Arteries
What supplies oxygenated blood to the heart muscle? - ANSWER-Coronary Arteries
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Which layer of the heart contains actin, myosin, and troponin? - ANSWER- Myocardium
Which valves are open during atrial systole? - ANSWER-Tricuspid Mitral
What is true of blood leaving the tissues and traveling towards the right atrium? - ANSWER-Oxygen poor, carbon dioxide rich
Valve that prevents backflow of blood into the left ventricle when the left ventricle is in diastole? - ANSWER-Aortic
The aorta receives blood from what structure? - ANSWER-Left ventricle
Which vessel carries blood from the pulmonary capillaries to the left atrium? - ANSWER-Pulmonary veins
Which cavity of the heart first receives unoxygenated blood from the vena cava? - ANSWER-Right atrium
What is the right semilunar valve separating the right ventricle and the pulmonary artery? - ANSWER-The pulmonic valve
What is the function of the pulmonic valve? - ANSWER-To prevent blood flow from the pulmonary arteries to the right ventricle during ventricular diastole
What do heart rate and stroke volume determine? - ANSWER-Cardiac output
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