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Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Lymphatic vessels pick up excess tissue fluid, purify it in the lymph nodes, and then return it to t Lymphatic vessels pick up excess tissue fluid, purify it in the lymph nodes, and then return it to t
The Uranus System The Uranus System
Procedures and Diagnostic Tests Related to the Female Reproductive System Procedures and Diagnostic Tests Related to the Female Reproductive System
The muscular system. The muscular system.
Gene editing using the CRISPR-Cas9 system. Gene editing using the CRISPR-Cas9 system.
Soil as a system Soil as a system
Video: Introduction to Pre-eclampsia

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