77. Which of the following muscles contracts during forced ca a. diaphragm b. re

Question

77. Which of the following muscles contracts during forced ca a. diaphragm b. rectus abdominis d. sternocleidomastoid e. external intercostals For questions 78 through 88 use the following answers if quantity A is greater than quantityB a. b. if quantity B is greater than quantity A c. if both A and B are equal 78. A-intrapleural pressure during expiration 79. A-pCo2 of blood entering pulmonary capillary B- pCO2 of air in alveoli A-% saturation of hemoglobin at p02 of 40 B-% saturation of hemoglobin at and pH of 7.4 pO2 of 100 and pH of 7.4 80. 81. A- po2 of blood at venous end of pulmonary capillay B- pO2 of air in alveolus 82. A-amount of O2 carried in the blood by hemoglobin B-amount of 02 dissolved in plasma 83. A-amount of IgG produced during a secondary immune response 84. A- respiratory rate in response to elevated arterial pCO 85. A-number of bacteria in air entering upper respiratory system 86. A-amount of CO, in blood transported as 87. A- intrapleural pressure during inspiration B- amount of IgG produced during a primary immune response reduced arterial pCO B-respiratory rate in response to of bacteria in air entering lower respiratory system B-amount of CO, in blood transported as bicarbonate B- intrapulmonary pressure during inspiration 88. A-%saturation of fetal bennglobinaph of75

Explanation / Answer

77.Q.muscles that compress the thoracic cavity are called expiratory muscles which induces exhalation.Normal expansion happens because of lungs where as forceful expiration is done by internal intercostals,abdominal muscles which include- rectus abdominis,transverse abdominis,external and internal oblique muscle.

78.Q.intrapulmonary pressure is more than intrapleural pressure during expiration.The quantity of B is greater than Quantity ofA.

79.Q.the PCO2 of blood entering into pulmonary capillries and PCO2 of air in alveoli is equal.Both A and B are equal.

80.Q. saturation of hemoglobin at PO2 of 100 and PH of 7.4 is greater than  saturation of hemoglobin at PO2 of 40 and PH of 7.4.Quantity of B is greater than A.

81.PO2 of air in alveoli is greater than  Po2 of blood at venous end of pulmonary capillary. Quantity of B is greater than A

82amount of O2 carried in the blood by hemoglobin  is greater than the amount of O2 dissolved in plasma. .Quantity of A is greater than B.

NOTE:As per chegg rules we will answer first 4 questions only.

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