Chapter 5 Flashcards
What is Keratin
Waterproof protein
Separate skin from deeper structures
Stabilizes skin to underlying tissue
Allows independent movement
Dominated by adipose tissue
Hypodermis
What are the two fiber types in the dermis
Collagen and elastin
Two layers of the dermis
Papillary
Reticular
What kind of tissues are the papillary and reticular layers made up of
Areolar
Connective
Which layer of the dermis contains sweat glands and follicles as well as capillaries lymphatic capillaries and sensory neurons
Reticular
What skin layer is not found in thin skin
Stratum Lucidum
What are the 4 layers of the skin
Stratum corneum
Stratum granulosum
Stratum spinosum
Stratum basale
What two kinds of cells are found in the stratum basale layer and what do they do
Basal cells divide to replace sells lost
Merkel cells are touch receptors
What is The loss of melanocytes and color
Vitiligo
What do you exocrine glands do
Assist in thermoregulation
Excrete waste
Lubricate epidermis
Hair layers
Cuticle cortex medulla
Holocrine glands that Discharge and oily lipid secretion
Sebaceous gland
What are the two kinds of sweat glands
Apocrine
Eccrine
List the five ways to stay cool And define each one
Vasodilation – increase lumen of blood in dermis
Radiation – Heat loss From dermal Blood vessels
Evaporation – heat loss from sweat to air
Convection – heat loss from skin to air
Conduction – heat loss from skin to cooler surface
