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Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Synthesis of the active hormone formed from vitamin D or its precursor in skin. Synthesis of the active hormone formed from vitamin D or its precursor in skin.
Human Skin Human Skin
Pigmented bands in nail of patient with dark skin Pigmented bands in nail of patient with dark skin
Using both hands, gently but firmly grasp the skin over a spot on the upper back, and lift the skin ... Using both hands, gently but firmly grasp the skin over a spot on the upper back, and lift the skin ...
Inflamed skin (dermatitis) can result from pellagra Inflamed skin (dermatitis) can result from pellagra
The photo is a cross-section of thickened human skin The photo is a cross-section of thickened human skin
Video: Interpreting a cladogram Animation

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