Your skin a glance
What, where and why?
Your
skin is one of the most important organs in your body that performs
essential functions as s protection, hydration, sensation and
temperature control. The internal structure of your skin, however, is more interesting. Discover some of the main structural elements of your skin.
C multiindented the skin
Your skin is composed of two main layers, the epidermis and the dermis, which is based on both the subcutaneous (underlying).
The epidermis e: This is the outer layer (or higher) of the skin is composed of dead skin cells outside of living cells and in depth. Melanocytes (special cells) in the epidermis produce melanin which colors the skin and protects it from ultraviolet rays.
Dermis: The dermis is below the epidermis and constitutes the bulk (90 percent) of your skin.
The subcutaneous layer (hypodermis): The
epidermis and dermis layers based on subcutaneous (subcutaneous = under
the skin) s composed largely of fat through which the blood vessels and
nerves. Roots and sebaceous glands are known in these doripares layer s.
Glands of the skin
There are two main types of glands in your skin:
Sebaceous glands: They are distributed throughout the skin but are mainly concentrated on the scalp, face, chest and mid genitals. They are connected to hair follicles and secrete an oily substance (sebum) that lubricates and protects the skin.
Sweat glands: These glands are distributed throughout the body but there are as many of them in the palms, soles, forehead and armpits. They secrete during times of stress, emotions or in a hot environment.
Particular structures of the skin
Hair: Each hair grows in a single follicle whose roots lie in the subcutaneous tissue of the skin. Sebaceous glands near the hair follicles provide gloss and, to some extent, waterproofing haired. The bristles also contain melanin. The number of melanin granules in the hair determines its color. Malnutrition can damage the hair.
Nails of the hands and feet: They are part of the epidermis and are composed of a protein called keratin. Each nail grows out from their roots dating back to the furrows of the skin. With malnutrition after an injury or chemotherapy, the formation of the nail is reduced.
Skin types
Depending
on your family history (heredity), your genetics and your lifestyle,
your skin may belong to one of the following types:
Oily Skin: Oily skin is caused by overactive sebaceous glands. Oily skin is thick with large pores and a high tendency to develop acne, not wrinkles. Most people who have oily skin, oily hair also.
Dry Skin: Dry skin is provo cated by a sub-ac tivity of the sebaceous glands by environmental conditions ales or natural aging. Dry skin is usually thinner and more easily irritated. It has a great tendency to develop wrinkles but no acne.
Normal Skin: Normal skin is neither greasy nor dry. It is smooth and has a fine texture - with few problems. However, she tends to her because Assec about ronmental factors and aging.
Combination Skin: Combination skin consists of oily areas, often on the forehead and around the nose and normal or dry areas.
