tailieunhanh - Ebook Guyton and hall physiology review (3rd edition): Part 2

(BQ) Part 2 book "Guyton and hall physiology review" presents the following contents: Respiration; aviation, space and deep sea diving physiology; the nervous system - General principles and sensory physiology; the special senses; motor and integrative neurophysiology, gastrointestinal physiology, metabolism and temperature regulation, endocrinology and reproduction, sports physiology. | UNIT VII Respiration 1. What tends to decrease airway resistance A Asthma B Stimulation by sympathetic fibers C Treatment with acetylcholine D Exhalation to residual volume 2. The pleural pressure of a normal 56-year-old woman is approximately -5 cm H2O during resting conditions immediately before inspiration . at functional residual capacity FRC . What is the pleural pressure in cm H2O during inspiration A 1 b 4 c 0 d -3 E -7 3. A healthy 25-year-old medical student participates in a 10-kilometer charity run for the American Heart Association. Which muscles does the student use contract during expiration A Diaphragm and external intercostals B Diaphragm and internal intercostals C Diaphragm only D Internal intercostals and abdominal recti E Scaleni F Sternocleidomastoid muscles 4. Which of the following would be expected to increase the measured airway resistance A Stimulation of parasympathetic nerves to the lungs B Low lung volumes C Release of histamine by mast cells D Forced expirations E All of the above 5. Several students are trying to see who can generate the highest expiratory flow. Which muscle is most effective at producing a maximal effort A Diaphragm B Internal intercostals C External intercostals D Rectus abdominis E Sternocleidomastoid 6. The above figure shows three different compliance curves S T and U for isolated lungs subjected to various trans-pulmonary pressures. Which of the following best describes the relative compliances for the three curves A S T U B S T U C S - T - U D S T U E S T U Questions 7 and 8 Use the figure below to answer Questions 7 and 8. 7. Assuming a respiratory rate of 12 breaths min calculate the minute ventilation. A 1 L min b 2 L min C 4 L min D 5 L min E 6 L min 117 Unit VII Respiration 8. A 22-year-old woman inhales as much air as possible and exhales as much air as she can producing the spirogram shown in the figure. A residual volume of liter was determined using the helium dilution technique. What is her FRC