It is one of the largest and heaviest organs in the body. It weighs between 3.5 - 10 kilograms, depending on body weight. They make up one-seventh of the body weight, and their area varies between 1.5 - 2 square meters; Although their thickness is no more than a few millimeters. The skin consists of three main layers, and it has an effective role in protecting the body from external influences; The skin must be taken care of and taken care of.
The skin is comprised of three fundamental layers: the epidermis, the dermis, and the subcutaneous tissue. Here are the subtleties of the structure and parts of the three layers of skin:
The epidermis is the external layer of the skin, and it comprises an epithelial tissue that thus comprises squamous cells or keratinocytes that produce the protein keratin, the principal part of the skin, hair, and nails when the cells close to the outer layer of the epidermis bite the dust. Living cells from the lower part of the epidermis to the surface to supplant them, and the epidermis contains Langerhans cells; They are specific cells that play a part in giving data about unfamiliar substances entering the body to lymphocytes; This aids in fostering an antigen reasonable for it.
The skin is recognized into two sorts of skin: the toughness that is tracked down just on the palms of the palms and the bottoms of the feet, and its thickness arrives at 1.5 mm, and the slight skin that covers the remainder of the body, and the more slender skin that covers the eyelid, and the epidermal layer comprises of five sub-layers organized start to finish as follows:
- Stratum corneum: a layer comprised of level-formed cells, in which no cores should be visible.
- Transparent Layer: A slender and level layer, its dead cells, and it is tracked down just in the thicker skin.
- Granular layer: It comprises rectangular cells.
- Spinosome layer: It comprises polyhedral cells, and becomes complemented in the space near the granular layer.
- The basal layer: It is the last layer in the epidermis, and it comprises columnar-formed cells, including:
- Basal cells: cells that partition continually, and transform into keratinocytes to supplant the cells that bite the dust.
- Melanocytes: cells that produce the shade melanin, which shields the skin from hurtful bright beams.
- Merkel cells: These are cells that recognize substances by contact.
The dermis is the layer that lies under the epidermis, and it is roughly 90% of the thickness of the skin, and it comprises a gathering of cells that play out different capabilities, like the fibroblast that produces connective tissue, and the extracellular tissue that isolates between The epidermis and the dermis, and the parts of the dermis layer:
- Veins: Its capabilities incorporate moving vitamin D from the skin to the body, furnishing the skin with oxygen and food, and freeing it of side effects.
- Lymph vessels: give the skin lymph that battles microbes.
- Sweat organs: transport sweat to the outer layer of the skin; It can dissipate and assist with cooling the skin.
- The sebaceous organs: They discharge regular oils that assist the skin with opposing water and microbes.
- Hair follicles: cavities that cover the hair root and give sustenance to the hair.
- Tactile receptors: The sensitive spots that communicate sensations, like agony and contact, from the skin to the cerebrum.
- Collagen: a strong protein delivered by youthful fibroblasts, invigorates body tissues and a particular shape and plays a part in balancing out muscles and organs in their places.
- Elastin: A protein delivered by youthful fibroblasts that give the skin versatility and the capacity to extend.
This tissue is known as the inward layer of the skin, the hypodermis, and it comprises delicate connective tissue and fat, and it is thicker in the space of the posterior, the centers of the hands, and the bottoms of the feet. The inward layer of the skin comprises fat tissue, a specific connective tissue comprising of fat cells that work to store fat to protect the body from heat. It additionally contains veins, lymphatic vessels, hair follicles, nerves, and white platelets called pole cells. Pole cells); They are cells that play a part in the development of veins, wound recuperating, and security of the body from microbes.
The importance of the skin
The skin is critical to the person, as it carries out the accompanying roles:
- Safeguards the body from unsafe outer impacts, like daylight, chilly, harmful substances, and microorganisms.
- It is utilized in the early determination of a few ailments, as paleness of the face might be a sign of a lessening in the number of red platelets, and yellowing of the skin might be a sign of hepatitis.
- Manages internal heat level.
- assists with detecting outer boosts, like warmth, cold, tension, tingling, and torment; Which empowers the body to play out the proper response, as happens while contacting a hot oven, for instance.
- Capacity of water, fat and metabolic items.
- It safeguards the body from drying out.
Here are a few hints to keep the skin solid and sound, as follows:
- Safeguarding the skin from daylight, which might build the gamble of skin disease, and cause kinks and age spots, by utilizing sunscreen, keeping away from openness to the sun in the early evening, and wearing garments that cover the body.
- avoid smoking; Because it makes harms the filaments that give the skin adaptability, like collagen and elastin, and limits little veins; Which denies the skin oxygen and food, causes kinks, and influences the skin so the smoker looks a lot more seasoned than his age.
- Treat the skin delicately, by supplanting high temp water with warm water while scrubbing down, utilizing a delicate cleanser, tenderly drying the skin, and utilizing saturating creams.
- Eat a solid eating regimen, center around organic products, vegetables, and entire grains, and stay away from undesirable fats and refined sugars. trying not to stress and treat its causes; Because endlessly stress causes skin issues like skin break out, and sensitivities.