1. A)A major function of the skin is protection from ______. A.abrasion B.ultraviolet light C.entry of a microorganism D.dehydration E.All of the aboveB)What is one important function of melanin? A.Resets the diurnal biological clock B.Increases the amount of blood vessels C.Causes the skin to become cooler D.Absorbs harmful radiation E.Strengthens the skin or eyesC)Most of the cells of the epidermis are ________________. A.fibroblasts B.keratinocytes C.macrophages D.Langerhans cellsD)The epidermis is nourished by diffusion from capillaries in the ___________. A.papillary layer of the dermis B.hypodermis C.epidermis D.reticular layer of the dermisE)Cell division occurs in which layer of the epidermis? A.Stratum lucidum B.Stratum corneum C.Stratum basale D.Stratum granulosumF)Which of the following is NOT a component of the epidermis thin skin? A.Keratinized cells B.Keratin C.Capillaries D.MelanocytesG)Which statement is true about a tan and tanning? A.Sunning for the purpose of tanning produces healthier skin. B.A tan indicates sun damage to the skin. C.Tans last even if the skin is not exposed to the sun for months. D.Tanning promotes skin with a more youthful appearance. E.B and CH)In which layer of the epidermis do the nucleus and other organelles disintegrate and the cells die? A.Stratum corneum B.Stratum granulosum C.Stratum lucidum D.Stratum basaleI)Which of the following associations is INCORRECT? A.Keratinocytes; found in the stratum spinosum B.Langerhans cells; immune cells C.Melanocytes; typically found in the stratum corneum D.Adipocytes; fat cells E.None of the aboveJ)The _________ consists of many layers of dead squamous cells surrounded by lipids. A.stratum corneum B.stratum basale C.dermis D.hypodermis

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Answered: A major function of the skin is…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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1. A)

A major function of the skin is protection from ______.

	A.	abrasion
	B.	ultraviolet light
	C.	entry of a microorganism
	D.	dehydration
	E.	All of the above

What is one important function of melanin?

	A.	Resets the diurnal biological clock
	B.	Increases the amount of blood vessels
	C.	Causes the skin to become cooler
	D.	Absorbs harmful radiation
	E.	Strengthens the skin or eyes

Most of the cells of the epidermis are ________________.

	A.	fibroblasts
	B.	keratinocytes
	C.	macrophages
	D.	Langerhans cells

The epidermis is nourished by diffusion from capillaries in the ___________.

	A.	papillary layer of the dermis
	B.	hypodermis
	C.	epidermis
	D.	reticular layer of the dermis

Cell division occurs in which layer of the epidermis?

	A.	Stratum lucidum
	B.	Stratum corneum
	C.	Stratum basale
	D.	Stratum granulosum

Which of the following is NOT a component of the epidermis thin skin?

	A.	Keratinized cells
	B.	Keratin
	C.	Capillaries
	D.	Melanocytes

Which statement is true about a tan and tanning?

	A.	Sunning for the purpose of tanning produces healthier skin.
	B.	A tan indicates sun damage to the skin.
	C.	Tans last even if the skin is not exposed to the sun for months.
	D.	Tanning promotes skin with a more youthful appearance.
	E.	B and C

In which layer of the epidermis do the nucleus and other organelles disintegrate and the cells die?

	A.	Stratum corneum
	B.	Stratum granulosum
	C.	Stratum lucidum
	D.	Stratum basale

Which of the following associations is INCORRECT?

	A.	Keratinocytes; found in the stratum spinosum
	B.	Langerhans cells; immune cells
	C.	Melanocytes; typically found in the stratum corneum
	D.	Adipocytes; fat cells
	E.	None of the above

The _________ consists of many layers of dead squamous cells surrounded by lipids.

	A.	stratum corneum
	B.	stratum basale
	C.	dermis
	D.	hypodermis

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