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Questions and Answers
What is the primary function of the cardiovascular system?
What is the primary function of the cardiovascular system?
- To send blood to the lungs for oxygenation and to the digestive system for nutrient absorption (correct)
- To send blood to the kidneys for oxygenation and to the pancreas for nutrient absorption
- To send blood to the brain for oxygenation and to the liver for nutrient absorption
- To send blood to the muscles for oxygenation and to the skin for nutrient absorption
Where is the heart located?
Where is the heart located?
- In the pericardial cavity, surrounded by the pericardium
- In the thoracic cavity, between the lungs, at the level of the fourth rib
- In the abdominal cavity, between the liver and the stomach
- In the mediastinum, extending from the second to the sixth rib, slightly left of the midline (correct)
Which layer of the heart acts as a cushion for protection?
Which layer of the heart acts as a cushion for protection?
- Myocardium
- Endocardium
- Epicardium (correct)
- Pericardium
What separates the two lower chambers of the heart?
What separates the two lower chambers of the heart?
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Which valve prevents blood from flowing back into the left atrium when the left ventricle contracts?
Which valve prevents blood from flowing back into the left atrium when the left ventricle contracts?
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