What happens to limewater in the presence of Carbon Dioxide
It turns milky/cloudy
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15
What is breathing?
Breathing is the action of taking in oxygen for respiration and letting out carbon dioxide and water vapour from respiration. (Inhaling and exhaling)
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15
Where does the oxygenated blood travel after gas exchange?
All around the body
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15
What is the name of the membrane that helps the lungs move more easily?
Pleura
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15
What is the function of the nostrils.
Tiny hairs filter dirt an dust particles
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15
What is a ventilator?
Machine that takes over breathing for the body when the body cannot do it itself.
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15
What is the average BPM of an adult at rest?
12-16 Breaths
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15
Outline the role of the diaphragm in breathing.
Inhaling - Contracts and moves down. Exhaling- Relaxes and arches up
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15
Outline the steps involved in inhaling.
Intercostal muscles contract- the ribs move up and out. Diaphragm contracts- moves down. Volume the thorax increases. Pressure on lungs decreases. Air sucked in
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15
What is the role of the epiglottis?
Prevents food from entering the trachea.
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15
How does the respiratory system interact with the circulatory system?
Deoxygenated blood pumped through the artery to the lungs. Exchange of gases between the alveoli and the capillaries.Vein carries oxygenated blood back to heart
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15
During gas exchange, where does the co2 pass into?
