Myofibrils within cardiac muscle cells are aligned in sarcomeres.
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Q18: The base of the heart faces in
Q19: Which describes the endocardium?
A: Has single layer
Q20: The pulmonary trunk receives blood from the
Q21: The pericardium helps prevent overfilling of the
Q22: Metabolically, cardiac muscle relies on
A) aerobic metabolism
Q24: Deep to the interventricular sulci is the
Q25: Contrast the length-tension relationship for cardiac muscle
Q26: Which feature permits the compression necessary to
Q28: The papillary muscles attach to the cusps
Q36: Which carries oxygenated blood from the lungs
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