BIOL 160 UMB Wk 3 Cardiovascular Health and The Circulatory System Discussion

Answer the following questions thoroughly and respond with a meaningful answer to at least 2 of your classmates

(e.g. not an “I agree” or “me too” response).

1. Research one specific disease related to the human heart or circulatory system.

Explain how and why the disease develops, including current treatments available for it, prevalence, risk factor and/or causes.

2. Explain what a heart bypass surgery is. How and why is it done? Be thorough and explanatory.

3. How does blood return to the heart (especially from the lower body) in opposition to gravity?
Be thorough and explanatory.

Note: Post your answers here. You may get material from the Internet or books, but please include a proper reference in your answer (i.e., website URLs, book author and title).

Please do not use Wikipedia, about.com, or other websites that are not peer-reviewed.
*.gov sites are OK (e.g., NIH.gov and NIH-affiliated sites – there are many of them). Also, pharmaceutical company websites like Merck.com, Pfizer.com, Glaxosmithkline.com, etc. can be used for referencing as well as university websites (.edu).