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Costal cartilage joins _______________________.
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B
Explanation: Ribs to sternum. The typical rib is joined to the sternum by its own costal cartilage. The manubrium is a portion of the sternum.
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The superior and inferior venae cavae enter which chamber of the heart?
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D
Explanation: Right atrium. The superior and inferior venae cavae enter the right atrium of the heart.
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The _______ valve prevents blood from exiting the pulmonary artery and flowing back into the right ventricle.
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Answer:
B
Explanation: Pulmonary. The pulmonary valve prevents blood from exiting the pulmonary artery and flowing back into the right ventricle.
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The suprasternal, or jugular, notch, located at the anterior base of the __________, is used to locate the underlying trachea.
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The right pleural cavity, the left pleural cavity, and the mediastinum are three main regions of the ______________________.
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Intercostal arteries and veins provide circulation for the ________________________.
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The air-filled chambers in the lungs in which gas exchange takes place are the _____________________.
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The skeleton of the __________ consists of (1) a midline sternum, (2) 12 pairs of ribs and associated costal cartilages, and (3) 12 vertebrae.
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The entrance and exit in the lung for blood vessels and air tubes is the _________.
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The intercostal muscles of the thorax, which run from rib to rib, sternum to rib, and vertebra to rib, are involved with the mechanics of _________________________.
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Blood flows from the right atrium to the right ventricle through the _____ valve.
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The costal margin, used as an aid in locating the correct sternal position for external heart massage during cardiac emergencies, is formed by the inferior aspects of costal cartilages ____________.
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