Skin Flashcards
What are the 3 layers that the skin is composed of?
Epidermis
Dermis
Hypodermis
What is the main function of the epidermis?
Forms boundary between internal and external compartments
What is the dermis composed of?
Connective tissue
What are the names of the 5 layers of the epidermis?
Stratum Corneum Stratum Lucidum Stratum Granulosum Stratum Spinosum Stratum Basale
What is the stratum basale bound to the basement membrane?
Hemidesmosomes
How do you define which epithelial layer is the Stratum Granulosum?
Keratohyalin granules
What two layers make up the dermis layer?
Papillary Layer
Reticular Layer
What is the papillary layer made of?
Loose connective tissue
What is the reticular layer made of?
Dense irregular connective tissue
What are the 4 primary tissues?
Epithelium
Connective tissue
Muscle
Nerve
What is the largest organ in the body?
Skin
The epidermis prevents what?
Water loss by evaporation
What are the 4 types of epithelial tissue?
Keratinocytes
Melanocytes
Langerhans cells
Merkel cells
Which layer of dermis is closest to the epidermis?
Papillary Layer
What is the papillary layer protective against?
Pathogens