Integumentary System Flashcards
What are the four main types of cells in our epidermis?
Keratinocytes (90%)
Melanocytes(8%)
Langerhans cells (1%)
Merkel Cells (1%)
What is Sebum?
Skin Oil
What does the sebaceous gland do?
Secrete sebum
What are the two different types of Sudoriferous glands?
Eccrine and Apocrine
Eccrine glands are:
Sweat glands and Ceruminous glands
Apocrine glands are:
Scent glands and mammory glands
Where are apocrine glands found?
Beard hair, axillary, and pubic hair folicles
What is the acid mantle
fluid from sweat/sebaceous glands
What is the role of keratin?
waterproof
What is the role of corneum?
Shed dead cells
What is the role of granulosm?
overall negative charge
What are homeotherms?
Warm blooded
What are poikilotherms?
Cold blooded reptiles
What are arterio-venous (AV) plexuses?
Blood flow to the epidermis brings hot blood to surface to be cooled by evaportation
What is piloerection?
Hair stands up/goosebumps by erector pili muscle
