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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 liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

External View of the Right Eye External View of the Right Eye
Color-enhanced magnetic resonance image (MRI) showing a sagittal view of the head. Color-enhanced magnetic resonance image (MRI) showing a sagittal view of the head.
Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as
After Pierre Courvoisier, View of Père Lachaise Cemetery from the Entrance. After Pierre Courvoisier, View of Père Lachaise Cemetery from the Entrance.
3D Plant Layout - Side View for Dual-Stage Pressure Production of Nitric Acid 3D Plant Layout - Side View for Dual-Stage Pressure Production of Nitric Acid
Right posterolateral view of articulated vertebrae Right posterolateral view of articulated vertebrae
Video: Wound Repair Animation

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