× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
o
1
1
Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
New Topic  
obarron2 obarron2
wrote...
Posts: 45
Rep: 0 0
12 years ago
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.
Source  Marieb, E, & Hoehn, K. (2008). Human anatomy and physiology (8th ed.)
Read 2213 times
1 Reply
Replies
wrote...
#1
12 years ago
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).
Biology!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  853 People Browsing
 137 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Gallery
  
 265
  
 822
  
 55
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 432
Previous poll results: How often do you eat-out per week?