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Anatomy and Physiology Chapter 5 Exam Questions With 100% Correct Answer

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Anatomy and Physiology Chapter 5 Exam Questions With 100% Correct Answer

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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

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