Introduction body. It is about 20 square feet

Introduction

Skin is
the largest organ in our body. It is about 20 square feet in size. This
consists of three layers of cells and tissue.

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Picture of
the skin  layers

Pilosebaceous gland

 

 

 

 

Human skin
having complex diffusion barriers (the deeper layer of the skin) Underneath of
the skin has numerous blood vessels and nerve fibers.. 

 

 

 

Commonly
used terms with skin disorders

 

The distribution and morphological features of the
skin lesions help the clinicians for diagnosis. Following are the most common
skin disorders in the world accordingly.

1.     
Acne

Blockage of
the hair follicles and sebaceous gland of the skin often due to hormonal
changes
 

3.     
Shingles (Herpes
zoster)

Red blistered
rash that can appear anywhere in the body. Cased by varicella zoster virus.
 

5.      
Sun burn

Red, Hot, painfull
and sometimes peeling skin due to excessive exposure to Ultraviolet (UV)
from sun lamps.
 

7.      
Diaper Rash

Red bumps
and rashes in the buttocks, genitals, skin folds and diaper area of a
child due to prolonged exposure to a wet diaper.
 

9.      
Tinea
pedis infection

Fungal
infection.
 

10.  
Abscess

Collection
of Pus in cavity
 

11.  
Blister

A fliud–filled
circumscribed lesion larger than 0.5 cm in diameter
 

8.      
Rosacea

Chronic swelling
and redness of the face which arises due to a problems in immune system.
 

6.      
Contact dermatitis

A type of
eczema which evolves when touching something.
 

4.      
Urticaria

Raised, Red
itchy patches can be seen on the skin usually due to an allergy.
 

Inflammation of the
skin causing an itchy rash often due over action of the immune system and
can also be due to genetics and environment changes. Atopic dermatitis is
Eczema seen in children.
 

2.   Atopic dermatitis (Eczema)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other
terms

Comedo

Plug
of Keratin and sebum in a pilosebaceous follicle

Ecchymosis

Extravasation
of blood in to skin

Eeythema

Red
coloration due to vascular dilatation

Fissure

A
Slit through the whole thickness of the skin

Keratosis

A horny
like thickening of the skin with keratin

Lichenification

Thick
hard patches in the skin due to excessive itching

Macule

area of altered colour or
texture with no elevation above the surface of the            surrounding
skin