full transcript
From the Ted Talk by Andrew Lovering: How high altitude affects your body
Unscramble the Blue Letters
fanertuolty, AMS only happens when we asnced too fast, because our bodies have numerous ways of adapting to high altitudes. Within minutes or even seconds of reaching altitudes of 1,500 meters, carotid chemoreceptors in your neck ssnee your blood’s low oxygen pressure. This triggers a response that irnacsees the rate and dtpeh of your breathing to counteract the lack of oxygen. Your heart rate also increases and your heart contracts more tightly to pump aoiiadntdl blood with each beat, quickly moving otgxaneeyd blood around your body.
Open Cloze
___________, AMS only happens when we ______ too fast, because our bodies have numerous ways of adapting to high altitudes. Within minutes or even seconds of reaching altitudes of 1,500 meters, carotid chemoreceptors in your neck _____ your blood’s low oxygen pressure. This triggers a response that _________ the rate and _____ of your breathing to counteract the lack of oxygen. Your heart rate also increases and your heart contracts more tightly to pump __________ blood with each beat, quickly moving __________ blood around your body.
Solution
- oxygenated
- ascend
- additional
- increases
- sense
- depth
- fortunately
Original Text
Fortunately, AMS only happens when we ascend too fast, because our bodies have numerous ways of adapting to high altitudes. Within minutes or even seconds of reaching altitudes of 1,500 meters, carotid chemoreceptors in your neck sense your blood’s low oxygen pressure. This triggers a response that increases the rate and depth of your breathing to counteract the lack of oxygen. Your heart rate also increases and your heart contracts more tightly to pump additional blood with each beat, quickly moving oxygenated blood around your body.
Frequently Occurring Word Combinations
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Important Words
- adapting
- additional
- altitudes
- ams
- ascend
- beat
- blood
- bodies
- body
- breathing
- carotid
- chemoreceptors
- contracts
- counteract
- depth
- fast
- fortunately
- heart
- high
- increases
- lack
- meters
- minutes
- moving
- neck
- numerous
- oxygen
- oxygenated
- pressure
- pump
- quickly
- rate
- reaching
- response
- seconds
- sense
- tightly
- triggers
- ways