Indicate why when one scrapes their skin, it does not bleed but it's painful.
Ans: Epidermis is avascular.
Presence of free nerve endings
Quiz Epidermis is a stratified epithelium. Starting from the lowest layer, place the following in
the correct order.
Ans: 1.Stratum Basale
2. Stratum Spinosum
3. Stratum Granulsum
4.Stratum Lucidum
5.Stratum Corneum
Quiz Differences in skin color among individuals are the result of __________.
Ans: the different levels of melanin synthesis
,Quiz What are the functions of the integumentary system?
Ans: Vitamin D synthesis
Protection
Detection of touch
Coordination of the immune response
Quiz In which layers of the epidermis do mitotic divisions occur?
Ans: Stratum basale
stratum spinosum
Quiz Why are lines of cleavage clinically significant?
Ans: A cut parallel to a cleavage line will remain closed.
Quiz In thick skin, what is the thickest (most cell layers) stratum of the epidermis?
Ans: Stratum corneum
Quiz What causes stretch marks?
Ans: Rupturing of the collagen fibers
, Aging
Weakening of elastin fibers
Quiz Which epidermal layer is found only in thick skin?
Ans: Stratum lucidum
Quiz What are the two basic factors that interact to produce skin color?
Ans: Circulation and pigment concentration
Quiz What is the water-resistant, fibrous protein that fills the cells of the outer layers of the
epidermis and helps slow dehydration?
Ans: Keratin
Quiz Which of the following is a dark brown, yellow-brown, or black pigment produced by
pigment cells in the stratum basale?
Ans: Melanin
Quiz What are the two layers of the cutaneous membrane (skin)?
Ans: Dermis and epidermis
Ans: Epidermis is avascular.
Presence of free nerve endings
Quiz Epidermis is a stratified epithelium. Starting from the lowest layer, place the following in
the correct order.
Ans: 1.Stratum Basale
2. Stratum Spinosum
3. Stratum Granulsum
4.Stratum Lucidum
5.Stratum Corneum
Quiz Differences in skin color among individuals are the result of __________.
Ans: the different levels of melanin synthesis
,Quiz What are the functions of the integumentary system?
Ans: Vitamin D synthesis
Protection
Detection of touch
Coordination of the immune response
Quiz In which layers of the epidermis do mitotic divisions occur?
Ans: Stratum basale
stratum spinosum
Quiz Why are lines of cleavage clinically significant?
Ans: A cut parallel to a cleavage line will remain closed.
Quiz In thick skin, what is the thickest (most cell layers) stratum of the epidermis?
Ans: Stratum corneum
Quiz What causes stretch marks?
Ans: Rupturing of the collagen fibers
, Aging
Weakening of elastin fibers
Quiz Which epidermal layer is found only in thick skin?
Ans: Stratum lucidum
Quiz What are the two basic factors that interact to produce skin color?
Ans: Circulation and pigment concentration
Quiz What is the water-resistant, fibrous protein that fills the cells of the outer layers of the
epidermis and helps slow dehydration?
Ans: Keratin
Quiz Which of the following is a dark brown, yellow-brown, or black pigment produced by
pigment cells in the stratum basale?
Ans: Melanin
Quiz What are the two layers of the cutaneous membrane (skin)?
Ans: Dermis and epidermis