physiology week12 quiz Exam Questions and Answers(RATED A)

Which of the following helps determine the amount of oxygen that diffuses into the blood each minute? - ANSWER-All of the above help determine the amount of oxygen that diffuses into the blood each minute. Excessive fluid in the pleural cavity would be most likely to cause: - ANSWER-decreased vital capacity. About 98.5% of the oxygen carried by systemic arterial blood is attached to: - ANSWER-hemoglobin The major form by which carbon dioxide is transported in the circulatory system is: - ANSWER-as bicarbonate ions. Carbon dioxide is carried in three forms in the blood. Ranking them from greatest to least amount carried, the sequence would be: - ANSWER-bicarbonate ion, carbaminohemoglobin, and dissolved in plasma. Which of the following is not a means of transporting oxygen in the blood? - ANSWER-Combined with the bicarbonate ion (HCO3-) During inspiration, the expansion of the lungs causes: - ANSWER-a decrease in alveolar pressure. Which type of breathing is characterized by repeated sequences of deep gasps and apnea, and is usually seen in people with increased intracranial pressure? - ANSWER-Biot's breathing A type of breathing characterized by gradually increasing tidal volume for several breaths followed by several breaths with gradually decreasing tidal volume is: - ANSWER-Cheyne-Stokes respiration. Normal, quiet breathing is known as: - ANSWER-eupnea Which of the following would have the greatest accelerating effect on the dissociation of oxygen from hemoglobin? - ANSWER-Decreased PO2 and increased PCO2 The term used to describe the volume of air exchanged during normal inspiration and expiration is: - ANSWER-tidal volume.