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1.4 Cross-section. 2 Cell count and cell mass. ... The human skin is the outer covering of the body and is the largest organ of the integumentary system.
The dermis is composed of three major types of cells: [3] fibroblasts, macrophages, and mast cells.. Apart from these cells, the dermis is also composed of matrix components such as collagen (which provides strength), elastin (which provides elasticity), and extrafibrillar matrix, an extracellular gel-like substance primarily composed of glycosaminoglycans (most notably hyaluronan ...
Lateral cross section of the penis. Three main parts of the human penis include: Root: It is the attached part, consisting of the bulb in the middle and the crura, one crus on either side of the bulb. It lies within the superficial perineal pouch. The crus is attached to the pubic arch. Shaft: The pendulous part of the penis. It has two ...
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. [1] 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. [2]
Cross-sections of the torso of a person of normal weight (left) and an obese person (right), taken by CT scan. Note the 3.6 cm (1.4 inches) of subcutaneous fat on the obese person. Subcutaneous fat is the most widely distributed subcutaneous tissue layer. [ 1 ]
A vesiculobullous disease is a type of mucocutaneous disease characterized by vesicles and bullae (i.e. blisters).Both vesicles and bullae are fluid-filled lesions, and they are distinguished by size (vesicles being less than 5–10 mm and bulla being larger than 5–10 mm, depending upon which definition is used).
The word skin originally only referred to dressed and tanned animal hide and the usual word for human skin was hide. Skin is a borrowing from Old Norse skinn "animal hide, fur", ultimately from the Proto-Indo-European root *sek-, meaning "to cut" (probably a reference to the fact that in those times animal hide was commonly cut off to be used as garment).
Seborrheic-like psoriasis (also known as "Sebopsoriasis", [36] and "Seborrhiasis") is a skin condition characterized by psoriasis with an overlapping seborrheic dermatitis. [ 3 ] : 193 Sebaceous adenoma , a benign slow-growing tumour —which may, however, in rare cases be a precursor to a cancer syndrome known as Muir–Torre syndrome .