In the response of slight increase of arterial CO2 partial pressure to increase ventilation per minute, the most important structure is medullary chemoreceptor.
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