Phillip is undergoing surgery for unstable angina. the surgeons are inserting a catheter with a balloon tip through the femoral artery of phillip’s leg. the catheter will be threaded up the aorta into the obstructed coronary artery. at the point of obstruction, the balloon is inflated and pushes the plaque content against the walls of the artery. what treatment is phillip receiving?
a. coronary artery bypass graftb. nitratesc. pacemakerd. parenteral antibioticse. percutaneous transluminal coronary angioplasty

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

People with one sickle cell allele are not likely to get malaria. what is this an example of?