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[5] [better source needed] The average human skin cell is about 30 μm in diameter, but there are variants. A skin cell usually ranges from 25 to 40 μm 2 , depending on a variety of factors. Skin is composed of three primary layers: the epidermis , the dermis and the hypodermis .
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]
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.
The peripheral nervous system (PNS) is divided into the somatic nervous system, the autonomic nervous system, and the enteric nervous system.However, it is the somatic nervous system, responsible for body movement and the reception of external stimuli, which allows one to understand how cutaneous innervation is made possible by the action of specific sensory fibers located on the skin, as well ...
(10040–19499) integumentary system (20000–29999) musculoskeletal system (30000–32999) respiratory system (33010–37799) cardiovascular system (38100–38999) hemic and lymphatic systems (39000–39599) mediastinum and diaphragm (40490–49999) digestive system (50010–53899) urinary system (54000–55899) male genital system
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).
ICD-9-CM Volume 3 is a system of procedural codes used by health insurers to classify medical procedures for billing purposes. It is a subset of the International Statistical Classification of Diseases and Related Health Problems (ICD) 9-CM.
Diseases of the Respiratory System IX 520–579: Diseases of the Digestive System X 580–629: Diseases of the Genitourinary System XI 630–679: Complications of Pregnancy, Childbirth, and the Puerperium XII 680–709: Diseases of the Skin and Subcutaneous Tissue XIII 710–739: Diseases of the Musculoskeletal System and Connective Tissue XIV ...