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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?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.