举一反三
- Dead space like ventilation refer to () A: decrease<br/>of partial alveolar ventilation B: increase<br/>of partial alveolar VA/Q C: increase<br/>of partial alveolar ventilation D: decrease<br/>of partial alveolar VA/Q E: increase<br/>of anatomic shunt
- Under normal circumstances, the effective stimulus to maintain the excitability of the respiratory center is increasing of CO2 partial pressure in arterial blood.
- The oxygen partial pressure or the amount of oxygen in arterial blood is called:
- When arterial blood pressure rises, it can cause A: vagal tone decrease B: sympathetic tone increase C: aortic nerve afferent impulse reduce D: sinus nerve afferent impulse increase
- At a high altitude where atmospheric pressure is half of the normal, there is an increase in A: Pulmonary ventilation. B: Alveolar PO2 C: Arterial PO2 D: Arterial H+level E: Cerebral blood flow
内容
- 0
Under normal circumstances, the effective stimulus to maintain the excitability of the respiratory center is increasing of CO2 partial pressure in arterial blood. A: 正确 B: 错误
- 1
The<br/>response is to increase ______ ______ to the area and increase body<br/>heat.
- 2
【单选题】Either or both may be present and so increase the outflow of blood from the arterial to the venous system, as to lower mean arterial pressure and increase cardiac output. A: 平均动脉压…心输出量 B: 动脉压方式…大出血 C: 动脉压中间值…大出血 D: 动脉压方式…心输出量
- 3
Which of the following is primary function of mechanical ventilation? A: Maintain alveolar ventilation and correct hypoxemia B: Increase carbon dioxide C: Increase blood volume D: Maintain pulmonary blood flow
- 4
With the increase of confining pressure, what changes will occur in the mechanical properties of rocks? A: Strength increase B: Elasticity modulus increase C: Brittleness reduce D: Plasticity increase