kali nie #BeautyMadnessWithBabyNurul nak buat sharing sikit.
erm... this one basic things dulu la ye..
heee.. sama sama kita kumpul ilmu..
korang boleh rujuk post lepas untuk check balik part 1 and part 2.
since subjek ni dah jadi macam drama berepisod.. haha..
Skin Part 1 - Function
Skin Part 2 - Epidermis.
Skin - DERMIS
◕ The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain.
◕ The dermis is tightly connected to the epidermis by a basement membrane.
◕ It also harbors many nerve endings that provide the sense of touch and heat.
◕ It contains the hair follicles, sweat glands, sebaceous glands, apocrine glands, lymphatic vessels and blood vessels.
◕ The blood vessels in the dermis provide nourishment and waste removal from its own cells as well as from the Stratum basale of the epidermis.
◕ The dermis is structurally divided into two areas:
- a superficial area adjacent to the epidermis, called the papillary region
⋆ The papillary region is composed of loose areolar connective tissue. It is named for its fingerlike projections called papillae, that extend toward the epidermis.
⋆The papillae provide the dermis with a "bumpy" surface that interdigitates with the epidermis, strengthening the connection between the two layers of skin.
⋆ In the palms, fingers, soles, and toes, the influence of the papillae projecting into the epidermis forms contours in the skin's surface.
⋆ These epidermal ridges occur in patterns (see: fingerprint) that are genetically and epigenetically determined and are therefore unique to the individual, making it possible to use fingerprints or footprints as a means of identification.
⋆The papillae provide the dermis with a "bumpy" surface that interdigitates with the epidermis, strengthening the connection between the two layers of skin.
⋆ In the palms, fingers, soles, and toes, the influence of the papillae projecting into the epidermis forms contours in the skin's surface.
⋆ These epidermal ridges occur in patterns (see: fingerprint) that are genetically and epigenetically determined and are therefore unique to the individual, making it possible to use fingerprints or footprints as a means of identification.
- a deep thicker area known as the reticular region.
⋆ The reticular region lies deep in the papillary region and is usually much thicker.
⋆ It is composed of dense irregular connective tissue, and receives its name from the dense concentration of collagenous, elastic, and reticular fibers that weave throughout it.
⋆ These protein fibers give the dermis its properties of strength, extensibility, and elasticity.
⋆ Also located within the reticular region are the roots of the hairs, sebaceous glands, sweat glands, receptors, nails, and blood vessels.
⋆ Tattoo ink is held in the dermis.
⋆ Stretch marks often from pregnancy and obesity, are also located in the dermis.
⋆ It is composed of dense irregular connective tissue, and receives its name from the dense concentration of collagenous, elastic, and reticular fibers that weave throughout it.
⋆ These protein fibers give the dermis its properties of strength, extensibility, and elasticity.
⋆ Also located within the reticular region are the roots of the hairs, sebaceous glands, sweat glands, receptors, nails, and blood vessels.
⋆ Tattoo ink is held in the dermis.
⋆ Stretch marks often from pregnancy and obesity, are also located in the dermis.
Love,
Ladybie
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