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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.

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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Wolf spider carrying her young. Wolf spider carrying her young.
fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have
When children are “launched” into independence, their parents often find new interests together ... When children are “launched” into independence, their parents often find new interests together ...
Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter. Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter.
Photo of a sign taken at an emissions test facility. Photo of a sign taken at an emissions test facility.
The Ames test for potential mutagenicity of chemical compounds The Ames test for potential mutagenicity of chemical compounds
Video: Pores and Ion Channels

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