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Why Is the Heart Anchored to the Diaphragm
Chordae tendinease which prevents it from being turned outward. However the apex of the heart is not anchored to anything and can shift around based our our body position and breathing. 17 2 Heart Anatomy Medicine Libretexts In human cardiovascular system. . Pericardiumportion of the sac or fibrous pericardium is firmly attached to the diaphragm below the mediastinal pleura on the side and the sternum in front. 12 The paired lumbar muscles form the diaphragmatic crura that originate from the ventral aspect of the third and fourth lumbar vertebrae and run forward to form the central portion of the dorsal diaphragm. THE CARDIOVASCULAR SYSTEM II Critical Thinking and Review Questions 1. Why is the heart anchored to the diaphragm. The diaphragm is a musculotendinous sheet with a strong central tendon anchored to the costal arch and vertebrae by the sternal costal and lumbar muscles Fig. It is attached caudally to the basal par...
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