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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.
Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
There are more bacteria in your mouth than there are people in the world.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.