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Integumentary System > Is > Flashcards

Is Flashcards

1
Q

Functions of integumentary system

A

Protect the body, maintain homeostasis, provide sensory information from external environment

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2
Q

The three regions of the skin

A

Epidermis, dermis, subcutaneous layer

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3
Q

Layer composed of keratin and stratified squamous epithelium tissue

A

Epidermis

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4
Q

What toughens and waterproofs skin?

A

Keratin which is made of keratinocytes

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5
Q

What kind of cells are in the epidermis?

A

Keratinocytes, merkel, langerhans cells, and melanocytes

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6
Q

How many skin layers does the epidermis have?

A

Four unless it’s the palms or soles of the feet which have five

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7
Q

Make the five layers from superficial to deep

A

Corneum, lucidum, granulosum, sphinosum, basale

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8
Q

Epidermal cells are found deep in the stratum ——-

A

Basal

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9
Q

The stratum corneum has a waterproof layer because

A

Epidermal cells full of keratin die and make up the stratum corneum

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10
Q

What layer of the skin is made of tough connective tissue?

A

Dermis

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11
Q

The epidermis and dermis are connected by ———-

A

Collagen fibers

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12
Q

Layer of skin with nerve endings and blood vessels

A

Dermis

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13
Q

Two major regions of the dermis

A

Papillary region and reticular region

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14
Q

Layer of skin associated with touch, pain, heat, and cold

A

Dermis

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15
Q

Where are hair follicles and glands found

A

Dermal layer

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16
Q

Age effects on skin

A

Fewer elastic fibers as the body ages, reduction in cell division, blood circulation, muscle strength that cause less elastic and thinner dermis

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17
Q

Glands found primarily in the armpits and groin

A

Apocrine

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18
Q

Produce sweat when the body is anxious or experiencing stress

A

Apocrine sweat gland

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19
Q

Found all over the body, primarily on forehead, neck, palms, and soles of feet

A

Eccrine sweat gland

20
Q

Sebaceous glands produce —– and are typically attached to——?

A

Oil, hair follicles

21
Q

This has antimicrobial properties which hell the skin fight off infections

A

Sebum

22
Q

The —— and the —— contain the most sebum but are not found at all in which two parts of the body?

A

Face and head

Palms and soles of feet

23
Q

What structure produces sebum?

A

Sebaceous glands

24
Q

What three functions does sebaceous oils have?

A

Make skin waterproof
Prevent from drying out
Have antimicrobial properties

25
Q

Accessory organs of the integumentary system are

A

Hair and nails

26
Q

Fingernails and toes nails are made of

A

Keratin

27
Q

Hard outer part of the nail

A

Nail plate

28
Q

Overhangs the finger tip

A

Free edge

29
Q

Layer of skin found under the nail plate

A

Nail bed

30
Q

The nail bed is comprised of

A

Epidermal cells

31
Q

The white space between the nail bed and cuticle is called the

A

Lunula

32
Q

Layer of tissue that contains blood vessels and nerves which is beneath the cuticle

A

Matrix

33
Q

The hair —– is not attached to the follicle

A

Shaft

34
Q

Part of hair exposed to the surface of the body

A

Hair shaft

35
Q

Part of hair that contains actively dividing basal cells

A

Hair bulb

36
Q

Strongest risk factor of skin cancer

A

Exposure to ultraviolet radiation

37
Q

Uv radiation damages

A

DNA in the bodys cells

38
Q

Tumors in skin that move away from the original site of DNA damage and establish new tumors in other organs is called

A

Metastasis

39
Q

Two types of UV rays are

A

UVA and UVB

40
Q

Rays that penetrate the dermis and can cause skin cancer

A

UVA

41
Q

Rays that are responsible for sunburn and most skin cancers

A

UVB

42
Q

Most common skin cancer

A

Basal cell carcinoma which effects the basal cells and rarely spreads

43
Q

Second most common skin cancer and can metastasize if not removed

A

Squamous cell carcinoma effects the keratinocytes of the stratum spinosum

44
Q

Uncontrolled growth of melanocytes in the epidermis

A

Malignant melanoma

45
Q

Deeper dermal layer that provides elasticity to the skin

A

Reticular region

Integumentary System (1 decks)

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