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Title: help please Post by: obarron2 on Jan 22, 2012 4.The Agawam High School band is playing some lively marches while the coaches are giving pep talks to their respective football squads. Although it is September, it is unseasonably hot (88 degrees Farenheight/31 degrees Celsius) and the band uniforms are wool. Suddenly, Harry the tuba player becomes light-headed and faints. Explain his fainting in terms of vascular events.
Title: Re: help please Post by: how_mendel on Jan 22, 2012 Harry’s condition suggests that this is a case of transient vascular shock. Marching in the severe heat of the day caused the cutaneous blood vessels to dilate, which resulted in an increased blood volume pooling in the lower limbs (because of gravity). A subsequent decrease in blood flow to the heart caused Harry’s blood pressure to drop, and his dizziness and fainting was an indication that the brain was not receiving enough blood flow (hence, oxygen).
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