Hypoxemia produces hyperventilation by a direct effect on the
A: Phrenic nerve
B: respiratory center
C: Lung stretch receptors
D: Medullary chemoreceptors
E: carotid and aortic body
A: Phrenic nerve
B: respiratory center
C: Lung stretch receptors
D: Medullary chemoreceptors
E: carotid and aortic body
举一反三
- The direct motivation for lung ventilation comes from A: lung contraction B: elastic retraction of the lungs C: relief and contraction of respiratory muscles D: intrapulmonary pressure and atmosphere pressure difference
- Which one is necessary for the activity of respiratory center? A: afferent signals from the pulmonary stretch receptor. B: afferent signals from the proprioceptors in the respiratory muscle. C: certain level of PCO2. D: certain level of hypoxia. E: certai level of H+
- In the experiment of experimental pulmonary edema in mice, lung<br/>coefficient refers to ( ) A: Weight (g) / lung weight (g) B: Lung weight (mg) / body weight (mg) C: Body weight (g) / lung weight (mg) D: Lung weight (mg) / body weight (g) E: Body weight (mg) / lung weight (g)
- In the experiment of experimental pulmonary edema in mice, lung coefficient refers to ( ) A: Weight<br/>(g) / lung weight (g) B: Lung<br/>weight (mg) / body weight (mg) C: Body<br/>weight (g) / lung weight (mg) D: Lung<br/>weight (mg) / body weight (g) E: Body<br/>weight (mg) / lung weight (g)
- The basic way the nervous system works is() A: receptor B: sensory nerve C: effector D: nerve center E: reflex