Integumentary System Flashcards

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1
Q

What organs and structures are part of the integumentary system?

A

The skin, hair, nails, and accessory glands

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2
Q

What is the function of the integumentary system?

A

Provides protection from and picks up signals about the body’s surroundings

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3
Q

How many layers does the skin have? (Name them)

A

3
Epidermis, dermis, hypodermis

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4
Q

What is the function of the epidermis? (Outer most layer)

A

Provides a barrier to infection from environmental pathogens and regulates the amount of water lost to the body’s surroundings
-constantly being replaced with new skin cells

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5
Q

What structures are part of the dermis?

A

Nerve endings, hair follicles, sweat and oil glands, and capillaries

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6
Q

What structures are part of the hypodermis?

A

Blood vessels and adipose tissue
(Deepest layer of the skin)

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7
Q

What is the function of sweat glands (sudoriferous glands)?

A

Responsible for the excretion of water and minerals (sodium, chloride, magnesium) from the body

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8
Q

What are the two types of sweat glands?

A

Eccrine and apocrine glands

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9
Q

Where are eccrine glands found?

A

Appear all over the body (primary sweat gland)

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10
Q

Where are apocrine glands found?

A

Found in armpits, nipples and groin
-not active until puberty

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11
Q

Where are sebaceous glands found and what are their function?

A

Found all over the body except the soles of the feet and palms of the hand
-secretes sebum (mixture of fats,and proteins) that prevents the skin and hair form drying out

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12
Q

WHat are hair follicles?

A

Columns in the skin that have a large concentration of keratin-producing cells

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13
Q

How does the body cool itself (during hyperthermia)?

A

Blood vessels: dilate

Sudoriferous glands: increase sweating

Hair follicles: relax

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14
Q

How does the body warm itself (during hypothermia)

A

Blood vessels: constrict

Sudoriferous glands: cease sweating

Hair follicles: stand erect

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