Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 9 of 9 for Red
  1. ... to one part of the body or another. Red blood cells are an important element of blood. ... they carry to the lungs to be expelled. Red blood cells are formed in the red bone ...
  2. ... the walls of the alveoli. Here you see red blood cells traveling through the capillaries. The walls ... system and the bloodstream. Oxygen molecules attach to red blood cells, which travel back to the heart. ...
  3. As the heart pumps, arteries, shown here in red, carry oxygen-rich blood away from the heart ...
  4. ... A little less than half is composed of red and white blood cells and other solid elements ...
  5. ... injure the heart wall. In a healthy artery, red blood cells flow through unimpeded. But if the ...
  6. ... a cut. Blood flowing past the cut includes red blood cells that carry oxygen, platelets that come ...
  7. ... antigens circulate among the blood cells, which include red blood cells and white blood cells. White blood ...
  8. ... the capillary into surrounding tissue. Oxygen from the red blood cells, and nutrients in the fluid then ...
  9. Gout Video 
    ... common, painful form of arthritis. It causes swollen, red, hot and stiff joints. Gout is caused by ...