Layers of the Skin & Epidermis
Which epidermal layer has dividing cells and hemidesmosomes
Stratum Basale
What cells form the water barrier and produce keratin?
Keratinocytes
What increases surface area for the dermis?
Dermal papillae
What is the function of the arrector pili muscle?
Erects the hair to produce "goose bumps"
What gland in the skin uses holocrine secretion?
Sebaceous gland
Which layer contains desmosomes?
Stratum Spinosum
Which cells are monocyte-derived?
Langerhans' cells
What dermis layer consists of loose connective tissue?
What part of the hair follicle is a continuation of the epidermis?
External root sheath
Which glands in the skin use merocrine secretion?
Eccrine sweat glands and Apocrine sweat glands
Which layer is made of dead skin cells?
Stratum lucidum
What type of cell produces melanin and are neural crest-derived?
Melanocytes
What increases surface area for the epidermis?
Rete ridges
What are the 3 layers of hair from superficial to deep?
Cuticle, cortex, and medulla
Secrete sebum into hair follicle
Which epidermal layer has dead terminal cells?
Stratum Corenum
What cells are sensory?
Merkel's cells
What dermis layer consists of collagen bundles and dense irregular connective tissue?
Reticular layer
What is the smooth muscle attached to the hair follicle?
Arrector pili muscle
What type of epithelium do eccrine sweat glands have?
Stratified cuboidal
Which epidermis layer contains keratohyalin granules
Stratum granulosum
What cells are antigen-presenting?
Langerhans' cells
Where is the deep vascular plexus located?
Between the dermis and hypodermis
Name two glands that are associated with the hair follicle?
Sebaceous gland and Apocrine gland
What sweat gland secretes pheromones into the hair follicle?
Apocrine sweat gland