TheyĪlso fan out into the dermis's capillary bed. These vessels branch infinitely (not shown) into theĭermis to supply the sweat glands, hair follicles, sebaceous glands and erector muscles with blood. This is where it lives) you can see the blood vessels (shown as two thin red and blue lines). In the subcutaneous layer (you may have heard of subcutaneous fat. To the right is a picture to help you see what is going on. TheĮpidermis is the barrier, while the dermis is the layer containing all the "equipment" - things like nerveĮndings, sweat glands, hair follicles and so on. It is made up of two main layers: the epidermis on the outside and the dermis on the inside.
#Does sunscreen block tanning skin#
If you take a look at a cross section of typical skin (like the skin on your arm or leg) you find that Layered design so that it can handle realities of the environment like abrasion and sunlight. Therefore it is loaded with sensors, and it also has a very tough Things about skin that makes it different from a lot of other organs is the fact that it does have Their collective purpose is to act as the boundary between "you" and "the world".
Skin is made up of very specific cells and tissues, and Organ - a) differentiated structure (as a heart, kidney, leaf, or stem) consisting of cells and tissuesĪnd performing some specific function in an organism b) bodily parts performing a function or cooperating in an activityīy that definition, skin is definitely an organ. Too, especially if you look at the dictionary definition of "organ", like thisĭefinition from the Merriam Webster Collegiate Dictionary: Heart, liver, kidneys - those are obviously organs.
We tend to think of organs as boxy things. Skin is one of the most amazing organs in the human body.
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