阿摩線上測驗
54. How is lung volume changed during inhalation in mammals?
(A) By decreasing the volume of the thoracic cavity via muscle contraction.
(B) By the movement of the diaphragm and rib muscles, increasing thoracic volume.
(C) By the elastic recoil of the lungs, which expands them directly.
(D) By the contraction of muscles within the lungs themselves, expanding the volume.
(E) By the increase of pressure within the lung, forcing expansion.
答案：登入後查看
統計： A(0), B(40), C(1), D(1), E(1) #3429733
統計： A(0), B(40), C(1), D(1), E(1) #3429733
詳解 (共 2 筆)
123
#7371581
吸氣時，diaphragm 收縮向下、肋間肌收縮向上，所以胸腔體積變大、壓力變低，空氣流入肺，呼氣時，diaphragm 放鬆上升、肋間肌放鬆向下
0
0
