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Exam (elaborations)
BSC 2346 - MID-TERM STUDY GUIDE.
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The trachealis muscle is located on the posterior aspect of the trachea, facing the esophagus? ● True What is true of gas exchange within the lungs? ● Occurs through and with the type I alveolar cells This portion of the cardiac conduction system controls the rate at which the heart contracts? ● SA node What is the correct pathway of the cardiac conduction system? ● SA node – AV node – Bundle of His – Right/Left bundle branches – Purkinje Fibers What is NOT true of erythrocytes? ● Their life span is about 3-4 weeks The thoracic and pulmonary volumes can both increase? ● True The bronchial tree allows the passage of inspired air to reach the alveolar sacs for gas exchange to occur? ● True
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