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The topmost layer of our skin is the epidermis, which contains melanocytes.
An important endocrine gland producing hormones that affect metabolism and the calcium...
This lesson presents the anatomy of the eye, the mechanism of vision, and common vision...
The eye is one of our most important sense organs. When stimulated by light, electric...
Our body´s internal support structure to which skeletal muscles are attached.
In this lesson you will learn more about this special liquid.
This lesson presents everything related to human reproduction.
This animation demonstrates how muscles and vertebrae move the head.