🍾🥂🍾best questions 2nd respiratory 🍾🥂🍾
97) Alveolar ventilation (VA) refers to the A) movement of air into and out of the lungs. B) amount of air reaching the alveoli each minute. C) movement of dissolved gases from the alveoli to the blood. D) movement of dissolved gases from the blood to the alveoli. E) utilization of oxygen by alveolar cells to support metabolism.
B
100) The normal respiratory rate of a resting adult ranges from ________ breaths each minute, or roughly one for every four heartbeats. A) 4 to 6 B) 10 to 12 C) 12 to 18 D) 16 to 20 E) 22 to 24
C
95) The amount of air that a person can voluntarily expel after completing a normal, quiet respiratory cycle is termed A) total lung capacity. B) expiratory reserve volume. C) residual volume. D) tidal volume. E) inspiratory reserve volume.
B
78) Which of the following is greater? A) the partial pressure of oxygen in atmospheric air B) the partial pressure of oxygen in the alveoli
A
80) When there is no air movement, the relationship between the intrapulmonary and atmospheric pressure is that A) they are equal. B) intrapulmonary pressure is greater than atmospheric. C) atmospheric pressure is less than intrapulmonary. D) atmospheric pressure is more than intrapulmonary. E) intrapulmonary pressure is less than atmospheric.
A
89) When the diaphragm and external intercostal muscles contract, A) the volume of the thorax increases. B) the volume of the thorax decreases. C) the volume of the lungs decreases. D) the lungs shrink. E) expiration occurs.
A
99) Which of the following can be calculated if the tidal volume and respiratory rate are known? A) respiratory minute volume B) inspiratory reserve volume C) expiratory reserve volume D) anatomic dead space E) minimal volume
A
77) The unit of measurement for pressure specifically preferred by many respiratory therapists is A) mm Hg. B) torr. C) cm H2O. D) All of the answers are correct. E) None of the answers is correct.
B
79) Air moves out of the lungs when the pressure inside the lungs is A) less than the pressure in the atmosphere. B) greater than the pressure in the atmosphere. C) equal to the pressure in the atmosphere. D) greater than intra-alveolar pressure. E) less than intrapulmonary pressure.
B
81) If the fluid bond between the parietal and visceral pleura is broken and the lung collapses, the resulting condition is termed A) emphysema. B) atelectasis. C) metaplasia. D) apnea. E) anaplasia.
B
76) Boyle's law states that gas volume is A) directly proportional to pressure. B) directly proportional to temperature. C) inversely proportional to pressure. D) inversely proportional to temperature. E) both directly proportional to pressure and directly proportional to temperature.
C
88) Expiratory movements are produced by contraction of the ________ muscle(s). A) scalene B) diaphragm C) internal intercostal D) external intercostal E) serratus anterior
C
90) Which of these descriptions best matches the term "external intercostal"? A) accessory muscle of expiration B) accessory muscle of inspiration C) primary muscle of inspiration D) contraction increases airway resistance E) affects lung compliance
C
92) ________ is the amount of air that you can inhale above the resting tidal volume. A) Residual inhaled volume B) Expiratory reserve volume C) Inspiratory reserve volume D) Enhanced tidal volume E) Inspiratory capacity
C
93) In quiet breathing, A) inspiration and expiration involve muscular contractions. B) inspiration is passive and expiration involves muscular contractions. C) inspiration involves muscular contractions and expiration is passive. D) inspiration and expiration are both passive. E) None of the answers is correct.
C
96) After a quiet expiration, the amount of air in your lungs is called the A) expiratory reserve volume. B) inspiratory capacity. C) functional residual capacity. D) tidal volume. E) residual volume.
C
91) ________ is the amount of air that moves into the respiratory system during a single respiratory cycle under resting conditions. A) Residual volume B) Expiratory reserve volume C) Inspiratory reserve volume D) Tidal volume E) Inspiratory capacity
D
98) ________ equals the respiratory rate � (tidal volume - anatomic dead space). A) Vital capacity B) Respiratory minute volume C) Pulmonary ventilation rate D) Alveolar ventilation rate E) External respiration rate
D
87) Which of the following muscles would not be recruited to increase inspired volume? A) sternocleidomastoid B) pectoralis minor C) scalenes D) serratus anterior E) rectus abdominis
E
94) If a patient being tested inhales as deeply as possible and then exhales as much as possible, the volume of air expelled would be the patient's A) tidal volume. B) total lung capacity. C) expiratory reserve volume. D) reserve volume. E) vital capacity.
E
