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Questions and Answers
What is the primary function of the heart and blood vessels?
Where is the heart located in the body?
What structure covers the heart and protects it?
Which type of blood vessel carries blood away from the heart?
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Which of the following is NOT a component of the circulatory system?
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Where is the mediastinum located in the body?
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What is the function of the pericardium in relation to the heart?
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Which blood vessels carry blood towards the heart?
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Study Notes
The Circulatory System
- The primary function of the heart and blood vessels is to transport oxygen and nutrients to cells and remove waste products.
Heart Location and Protection
- The heart is located in the thoracic cavity, between the lungs, and is protected by the rib cage.
- The pericardium, a double-layered sac, covers the heart and protects it by reducing friction and preventing excessive movement.
Blood Vessels
- Arteries carry blood away from the heart, whereas veins carry blood towards the heart.
- The circulatory system does not include the lymphatic system.
Mediastinum and Pericardium
- The mediastinum is a region in the thoracic cavity that contains the heart, trachea, esophagus, and major blood vessels.
- The pericardium acts as a shock absorber and reduces friction between the heart and surrounding structures, allowing for smooth heart movement.
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Description
Test your knowledge about the human cardiovascular system, including the heart, arteries, veins, capillaries, and the anatomical location of the heart within the mediastinum.
