Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
Did you know?
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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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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There are 60,000 miles of blood vessels in every adult human.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
The formation of covalent bonds
Nonpolar and polar bonds in an organic molecule
The Polar Climates (E)
Schematic of an IgG molecule: Two heavy and 2 light chains are linked together by disulfide bonds. ...