introduction

Structure of the skin

Skin consist of 3 layers
Epidermis
Dermis
Subcutaneous layer

Structure of the epidermis

Basal layer
Spinous layer
Granular layer
Cornified layer

Structure of the dermis

Ground susstanse
Fibers: collagen , elastic and reticular.
Cells : fibroblasts , macrophages , lymphocytes,mast cells.
Vascular supply
Neural supply

Sucutaneous layer

Structure : adipocytes
functions

Dermoepidernal junction

By electron microscope there is 2 distinct layers: lamina densa and lamina lucida. These layers consist of macromolicular structure.
Specialized area provide structural support and diffusion of nutiens and waste products.
Hemidismosoes from basal layer side and anchoring fibrils.

Functions of the skin

Protection
Thermoregulation
Storage
Endocrine
Psycho-socio-sexual display