GeneralLoutline skin is the biggest organ of the human bod is composed of epidermis, dermis and some accessory organs the function of the skin Y barrier and protection sensory organ excrete v body temperature regulation v cholesterol metabolism v absorbing some materials
General outline ▪ skin is the biggest organ of the human body ▪ is composed of epidermis , dermis and some accessory organs ▪ the function of the skin: ✓ barrier and protection ✓ sensory organ ✓ excrete ✓ body temperature regulation ✓ cholesterol metabolism ✓ absorbing some materials
pieris keratinized stratified squamous epithelium contains 2 cell types: stratum basale stratum spinosum Keratinocyte stratum granulosum stratum lucidum stratum corneum melanocyte keratinocyte Langergans cell Merkel cell
Epidermis: ▪ keratinized stratified squamous epithelium contains 2 cell types: Keratinocyte stratum basale stratum spinosum stratum granulosum stratum lucidum stratum corneum unkeratinocyte melanocyte Langergans cell Merkel cell
Dermis located beneath the epidermis PApillary laver: a thin layer of lCT, contain capillary plexuses and Meissner's corpuscles ■ Reticular layer: under the papillary later; consists of irregular DCT; contain large blood vessels, accessory organs of skin, nerve, and Pacinian corpuscles
Dermis: ▪ located beneath the epidermis ▪ Reticular layer: ▪ Papillary layer: a thin layer of LCT; contain capillary plexuses and Meissner’s corpuscles under the papillary later; consists of irregular DCT; contain large blood vessels, accessory organs of skin, nerve, and Pacinian corpuscles