Basics of skin

Parts of Integumentary system is

• Skin

• nail

• Hair

• vessels

Functions of skins are

• body temp. regulation

  Radiation protection

• senses

  storage of fatty acid

• synthesis of vitamins

• Barrier protection

  immunity protection

Appendages of skin

• sebaceous gland

• apocrine

  eccrine

• Hair root

• nail

Layers of skin

• Epidermis

• dermis

• Hypodermis

• dermatitis

Layers of Epidermis

• stratum corneum

• stratum lucidum

• stratum granulosus

• stratum germinativum

• stratum

  spinosum

Functions of epidermis

• Prevents to lose moisturiser from skin

• helps in repair/ Healing

• acts as Barrier to physical, chemical,microbialagents

• protection from external environment

• Gives appropriate skin colour

Keratinocytes attach to each other by structures called --------

(a)  

diffrent cells present in Epidermis are

• Merkel cell

• cells of langharhans

• keratinocytes

• melanocytes

Functions of sweat gland

• produce sweat during Heat stress

• Moisten the palms & soles to improve the grip

• Excretory function

• Protection

Diseases of Skin

• Eczema

• atopic dermatitis

• psoriasis

• folliculitis

  impetigo