The human body produces and destroys 15 million blood cells every second.
Did you know?
Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
Did you know?
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?
Everyone has one nostril that is larger than the other.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Cerebral angiography. The four angiograms each reveal the distribution of blood vessels supplying th
Correct use of a fire extinguisher
The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from