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Thorax overview

Thorax overview - Term Definition Thoracic cavity is...

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Term: Thoracic cavity is enclosed by what? Definition: The thoracic wall Term: What's the diaphragm subdivided into? Definition: Three parts: a left and right pleural cavity, each surrounding a lung, and the mediastinum Term: What's in the mediastinum? Definition: Heart, esophagus, trachea, major nerves, and major systemic blood vessels. Term: Pleural cavities are separated by what? Definition: Mediastinum. Term: Where does the apex of the lung extend into? Definition: Root of the neck. So anything wrong with the root of the neck could involve the pleural cavities.
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Term: What r the functions of the thorax? Definition: Breathing, protection of vital organs, and conduit. Term: Thoracic wall consists of what? Definition: Posteriorly, it has 12 thoracic vertebrae and their discs. Anteriorly, it has the sternum. Laterally, it has the ribs and three layers of flat muscles. Term: What forms the sternal angle? Definition: The manubrium of sternum, angled posteriorly on the body of the sternum at the manubriosternal joint. Term: Anterior end of the ribs is composed of what? Definition: Costal cartilage which contributes to mobility and elasticity.
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Term: What do ribs 2 to 9 have? Definition: Three articulations. Head articulates with the body of its own vertebra and with the body of the vertebra above. As these ribs curve posteriorly, they also articulate with transverse processes of its own vertebrae.
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