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Chapter 5

QuestionAnswer
Epidermis' cells Merkel cell, Melanocyte, Keratinocytes
Stratified squamous epithelial layer keratinized tissues; tough and dry for protection; keep generating
Keratin protein that serves a protection
Stratified squamous epithelial layer avascular
Thick skin palm and soles of foot
Diffusion How Epidermis get oxygen and nutrients
Dermis layers Papillary and Reticular
Dermal Papillae consists of adipocytes and phagocytes
Dermal Papillae made of areolar loose connective tissue; rich in capillaries to supply the epidermis
Dermal Papillae enhance connection with epidermis; results in ridges formation (fingerprints)
Reticular Layer dense and irregular CT
Reticular Layer bind water for hydration and elasticity allow movement
Reticular Layer provide structure and tensile strength
Reticular Layer host skin structures (sweat gland, hair, & blood vessels)
UV light destroy folic acid (necessary for DNA synthesis)
Hair dead & keratinized (epithelial) cells
Arrector Pili Muscle SM that help produce heat loss
Hair Functions protection, sensory input, thermoregulation, & communication
Root hair plexus nerve endings for sensation
1st degree burn affect only epidermis layer
2nd degree burn affect both epidermis & a portion of dermis; swelling & blisters
3rd degree burn affect fully both layers; destroy tissues; affect nerve endings; hinder BT regulation which lead to shocks
4th degree burn extends to the muscle and bones; nerve endings are damage; body can't repair and need debridement
Stratum Corneum dead cells; protect and prevent heat and water cells
Stratum Basale stem cells; mother cells of epithelium
Created by: FuirzH
 

 



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