I have a few questions about blood..?

ok so
1. are your actual veins blue or your blood blue?

2. If your bloods blue inside your body how come you have red blood cells and not blue blood cells?

3. how come in movies when they take verrryy small cameras thru ur veins and ur body NOTHING is blue not ur veins or ur cells or ur blood?

Movies are not always facts, plus more likely than not the camera is going through your stomach and other tubes not the vein ( if there is any air in the veins it will cause a heart attack, that's why nurses are very careful about removing air bubbles when giving vaccinations)... From what I have heard once the blood comes in contact with oxygen it turns blue therefore it is blue in the body and red when you cut your self.

1. Neither! The explanation is very, very involved, but due to light refraction through human tissue, your veins look blue.

2. You have red blood cells. Blue blood cells don't exist.

3. Because blood and veins aren't blue.

Many textbooks use blue and red illustrations to differentiate between veins and arteries. Arteries carry oxygenated blood away from the heart, and veins carry unxoygenated blood toward the heart.

Oxygenated blood is bright red; unoxygenated blood is dark red.