Structure and function of human skin Lianjun chen Huashan Hospital
Structure and Function of Human Skin Lianjun Chen Huashan Hospital
Importance of the study of skin diseases Common and prevalent diseases Skin beauty and health care D reflection of the body health paraneoplastic skin diseases Sex Transmitted Disease(STD), AIDS, other contagious diseases
Importance of the study of skin diseases Common and prevalent diseases Skin beauty and health care reflection of the body health （paraneoplastic skin diseases) Sex Transmitted Disease(STD), AIDS, other contagious diseases
OUTLINE Introduction of the skin Microstructure of the skin E epidermis The basement membrane zone Dermis Subcutis Appendageal Structure The function of the skin
OUTLINE Introduction of the Skin Microstructure of the skin – Epidermis – The basement membrane zone – Dermis – Subcutis – Appendageal Structure The function of the skin
Introduction The single biggest organ in the body Cover an average area of 1.5 m Varying thickness(0.4-4mm) Different color by the race age, gender location Perform many vital roles
Introduction The single biggest organ in the body Cover an average area of 1.5 m2 Varying thickness (0.4-4mm) Different color by the race, age, gender & location Perform many vital roles
Microstructure of the skin epidermis Dermis Subcutis a The basement membrane zone Appendageal Structure
Microstructure of the skin Epidermis Dermis Subcutis The basement membrane zone Appendageal Structure
The skin Free nerve endings Hair Merkel's Meissner's Sebaceous disc corpuscle gland Epiderm Basement membrane zone Arrector pili muscle Dermis Rutfini's Pacinian corpuscle corpuscle Sweat gland Subcutaneous Connective fa fibrous tissue Muscle Nerve in Arte
Epidermis Derived from ectoderm The celluar external layer Keratinocyte 角质层 1透明层 non-keratinocyte J颗粒层 Melanocyte 格 棘细胞层 Langerhans cell Merkel cell O 基底层 黑素细胞
Epidermis Derived from ectoderm The celluar external layer – Keratinocyte – non-keratinocyte Melanocyte Langerhans’ cell Merkel cell
Keratinocytes stratum basale, basal cell layer stratum spinosum, prickle cell layer stratum granulosum, granular layer stratum lucidum stratum corneum, horny layer
Keratinocytes stratum basale, basal cell layer stratum spinosum, prickle cell layer stratum granulosum, granular layer stratum lucidum stratum corneum, horny layer
Stratum corneum Stratum granulosum Stratum o spinosum 1 Stratum basale Langerhans' Basement Melanocyte cell membrane Keratinocyte Rete ridge