Physical Education A-Level
Respiratory and circulatory interaction
What Respiratory and circulatory interaction means in Physical Education A-Level, as defined for AQA.
Definition of Respiratory and circulatory interaction
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Reference: AQA
At the alveoli oxygen diffuses from alveolar air into pulmonary capillary blood while carbon dioxide diffuses from blood into alveolar air, and at the muscles the gradients reverse.
Topics that use Respiratory and circulatory interaction
- Respiratory system (AQA A-Level)
Related terms
- Airway narrowing
- Alveolar and muscle exchange
- Baroreceptor
- Baroreceptors
- Carbon monoxide, oxygen transport and aerobic capacity
- Chemoreceptor
- Chemoreceptors
- Chemoreceptors and sensory detection
Using Respiratory and circulatory interaction in the exam
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