Quiz
respiration during exercise
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Fragen in diesem Quiz (15)
1The pulmonary circulation is a?
- Ahigh pressure system
- Blow pressure system
- Cboth, high and low pressure system
2The pulmonary circulation, has a rate of blood flow equal to that in the systemic circuit.
- ARichtig
- BFalsch
3In a standing position, most of the blood flow to the lung is distributed to the __________________________ due to _______________.
- Athe apex of the lungs; respiration
- Bbase of the lungs; gravitational force
- Cthe apex of the lungs; gravitational force
- Dbase of the lungs; respiration
4Efficient gas exchange between the blood and the lung requires proper matching of blood flow to ventilation, called?
- Aventilation-perfusion relationships
- Bgas-exchange ratio
- Cventilation-blood flow relationships
- Dblood-lung ventilation ratio
5The ideal ratio of ventilation to perfusion is?
- A0.5 or less
- B1.0 or less
- C0.5 or greater
- D1.0 or greater
6Amount of O2 that can be transported per unit volume of blood is dependent on the?
- Aratio of ventilation to perfusion
- BHb concentration
- CMyoglobin (Mb) concentration
- DO2 concentration
7At the onset of constant-load submaximal exercise, ventilation increases rapidly, followed by a slower rise toward a steady-state value.
- ARichtig
- BFalsch
8At the onset of constant-load submaximal exercise, Arterial PO2 and PCO2 are maintained relatively constant during this type of exercise.
- ARichtig
- BFalsch
9During prolonged exercise in a hot/humid environment, ventilation [blank_start]“drifts” upward[blank_end] due to the influence of rising body temperature on the [blank_start]respiratory[blank_end] control center.
- A“drifts” downward
- B“drifts” upward
- Crespiratory
- Dcirculatory
10Input into the respiratory control center to increase ventilation can come from both ___________________________________ sources.
- Aneural and chemoreceptor
- Bneural and mechanoreceptors
11Neural input may come from higher brain centers, or it may arise from receptors in the ____________________.
- Anearby organs
- Bmedulla oblongata
- Cexercising muscle
- Drespiratory muscles
12Humoral chemoreceptor input may arise from central chemoreceptors and peripheral chemoreceptors.
- ARichtig
- BFalsch
13The central chemoreceptors are sensitive to increases in ___________ and decreases in __________.
- AO2; PO2 or ph
- BPO2; ph
- CPCO2; ph
- DPCO2; PCO2 or ph
14The peripheral chemoreceptor are sensitive to increases in ____________ and decreases in _________.
- APCO2; ph
- BPCO2; PO2 or ph
- CO2; ph
- DO2; PO2 or ph
15The primary drive to increase ventilation during exercise comes from ____________________.
- Alower brain centers
- Bhigher brain centers
Informationen
- Beschreibung
- Ex. Phyz Quiz am respiration during exercise , erstellt von Frank Ivey am 04/12/2016.
- Autor
- Frank Ivey
- Sprache
- English
- Aufrufe
- 2
- Schlagwörter
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