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Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.