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The human skin is the outer covering of the body and is the largest organ of the integumentary system. The skin has up to seven layers of ectodermal tissue guarding muscles, bones, ligaments and internal organs. Human skin is similar to most of the other mammals' skin, and it is very similar to pig skin.
The skin is one of the largest organs of the body. In humans, it accounts for about 12 to 15 percent of total body weight and covers 1.5 to 2 m 2 of surface area. 3D still showing human integumentary system. The skin (integument) is a composite organ, made up of at least two major layers of tissue: the epidermis and the dermis.
The integumentary system consists of the covering of the body (the skin), including hair and nails as well as other functionally important structures such as the sweat glands and sebaceous glands. The skin provides containment, structure, and protection for other organs, and serves as a major sensory interface with the outside world.
In human anatomy, the penis (/ ˈ p iː n ɪ s /; pl.: penises or penes; from the Latin pēnis, initially "tail") is an external male sex organ (intromittent organ) that additionally serves as the urinary duct. The main parts are the root, body, the epithelium of the penis including the shaft skin, and the foreskin covering the glans.
This article is about the skin of animals in general. For skin in humans, see Human skin. For other uses, see Skin (disambiguation). Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation.
The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain.
Schematic image showing a section of epidermis, with epidermal layers labeled. The epidermis is composed of 4 or 5 layers, depending on the region of skin being considered. [10] Those layers from outermost to innermost are: [2] cornified layer ( stratum corneum) Confocal image of the stratum corneum.
Skin. Epidermis; Dermis. Hairs; Downy hair (Lanugo) Skin glands. Sweat gland; Sebaceous gland; Nail. Lunule; Breast. Nipple; Mammary gland. Lactiferous duct; Lactiferous sinus; Areola; Suspensory ligaments of breast; Subcutaneous tissue; History of human anatomy. History of anatomy; Edwin Smith Papyrus - earliest known treatise on anatomy, from ...
A dermatome is an area of skin supplied by sensory neurons that arise from a spinal nerve ganglion. Symptoms that follow a dermatome (e.g. like pain or a rash) may indicate a pathology that involves the related nerve root .
Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from one's biological parents ), exposure to the sun, disorders, or some combination thereof. Differences across populations evolved through natural ...