There are 60,000 miles of blood vessels in every adult human.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Atherosclerosis. (a) A sectioned coronary artery that exhibits an accumulation of fatty plaque, whic
CARDIAC MUSCLE TISSUE
cardiac
Teaching methods based on patients developmental capacity