Touch - The Skin (Leaving Cert Biology): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
Main function of the skin
Main function of the skin
Physical barrier preventing pathogen entry
Integumentary system components
Integumentary system components
Skin, hair, nails, and glands
Epidermis sub-layers
Epidermis sub-layers
Three: cornified, granular, Malpighian
Cornified layer composition
Cornified layer composition
Dead cells; impermeable barrier
Protein in granular layer
Protein in granular layer
Keratin - strengthens skin
Malpighian layer function
Malpighian layer function
Produces melanin; protects against UV rays
Dermis proteins
Dermis proteins
Collagen and elastin (strength & elasticity)
Sweat glands: gland type
Sweat glands: gland type
Exocrine
Sweat glands function
Sweat glands function
Secrete sweat to cool body
Sebaceous glands secrete
Sebaceous glands secrete
Sebum - prevents skin drying
Erector muscles when cold
Erector muscles when cold
Contract; hair stands up, traps warm air
Vasodilation purpose
Vasodilation purpose
Regulate temperature by increasing blood flow to skin
Adipose tissue functions
Adipose tissue functions
Stores fat for insulation and energy