Chapter 5 - The Integumentary System Notes Flashcards
Chapter 5 - The Integumentary System
the integumentary system consists of
skin
hair
nails
glands
Chapter 5 - The Integumentary System
function of skin
protects
helps regulate body temp
produces vitamin d
detects stimuli
Chapter 5 - The Integumentary System
skin is the
epidermis
Chapter 5 - The Integumentary System
thick skin has _ layers
5
Chapter 5 - The Integumentary System
where is thick skin found
palms of hands and soles of feet
Chapter 5 - The Integumentary System
thin skin has
4 layers
Chapter 5 - The Integumentary System
what is word for layer
stratum
Chapter 5 - The Integumentary System
what are the 5 layers of skin (basement to exterior)
germinativum
spinosum
lucidum
corneum
Chapter 5 - The Integumentary System
what is function of skin and membranes
protection of underlying tissue
excretion
regulation of normal body temp
synthesis of vit D in response to UV light
storage of nutrients
detection of touch, pressure, pain, and temp
Chapter 5 - The Integumentary System
_____ is the transformation of living cells of the stratum corneum to protective cell layers that contain keratin
keratinization
Chapter 5 - The Integumentary System
keratinized cells are filled with keratin and have a _______ both of which contribute to structural strenght
protein envelope
Chapter 5 - The Integumentary System
keratinized cells are alos held together by many
desmosomes
Chapter 5 - The Integumentary System
intercellular spaces (in keratinized cells) are filled with _______ that contribute to teh impermeability of teh epidermis to water
lipids
Chapter 5 - The Integumentary System
____ is found in skin and the inside of hair whereas _____ occurs in nails and the outside of hairs.
soft keratin
hard keratin
Chapter 5 - The Integumentary System
hard keratin makes cells
more durable
Chapter 5 - The Integumentary System
________ such as those on the palms and soles, improve our gripping ability and increase the skin’s sensitivity.
epidermal ridges
Chapter 5 - The Integumentary System
epidermal ridges interlock with the underlying _______
dermis
Chapter 5 - The Integumentary System
__________ are part of the immune system
langerhans cells
Chapter 5 - The Integumentary System
_______ provide inof about objects that touch the skin
merkel cells
Chapter 5 - The Integumentary System
the color of the skin depends on 2 factors
epidermal pigmentation
dermal circulation
Chapter 5 - The Integumentary System
People who lack ______ are very pale
pigment melanin
Chapter 5 - The Integumentary System
the epidermis contains
carotene
melanin
Chapter 5 - The Integumentary System
_____ is found in orange vegetables.
carotene
Chapter 5 - The Integumentary System
carotene is found often in
stratum corneum
