Lab 5 Flashcards

1
Q

Epidermis mainly made of

A

Keratinized stratified squamous epithelium

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2
Q

Dermis made of

A

Connective tissue

Hair follicles

Glands

Sensory receptors

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3
Q

Hypodermis does

A

Attaches skin to underlying tissues

Provides insulation

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4
Q

Most of cells in epidermis are

A

Keratinocytes

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5
Q

Melanocytes

A

Produce melanin

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6
Q

Thick skin

A

Five layers

Found in fingertips, Palms of the hands, soles of feet

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7
Q

Thin skin

A

Four strata

Covers rest of body

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8
Q

Layers of thin skin

A

Stratum corneum

Stratum granulosum

Stratum spinosum

Stratum basale

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9
Q

Thick skin layers

A

Stratum corneum

Stratum lucidum

Stratum granulosum

Stratum spinosun

Stratum basale

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10
Q

Stratum corneum

A

Dead cells

Protection

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11
Q

Stratum lucidum

A

Translucent layer of cells

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12
Q

Stratum granulosum

A

Keratin formation begins in this layer and cells begin to die

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13
Q

Stratum spinosum

A

Cells get spiny look

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14
Q

Stratum basale

A

Cells rapidly multiplying

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15
Q

Layers of dermis

A

Papillary layer

Reticular layer

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16
Q

Papillary layer

A

Bumpy

Loose connective tissue

Tactile corpuscles

17
Q

Tactile corpuscles

A

Receptors for touch

Numerous in lips, fingertips, eyelids

18
Q

Reticular tissue

A

Dense irregular connective tissue

Lamellated connective tissue

19
Q

Lamellated corpuscles

A

Deep pressure and vibration receptors

20
Q

Hypodermis

A

Made of adipose tissue and areolar connective tissue

21
Q

Types of sweat glands

A

Escribe sweat glands

Apocrine sweat glands

22
Q

Eccrine sweat glands

A

Numerous in hands, feet, forehead

Ducts pass to surface of skin

23
Q

Apocrine sweat glands

A

Found in axillary and anogenital regions

Secrets product into hair follicles

24
Q

Hair is composed of

A

Keratin

25
Q

Sebaceous glands

A

Secrete sebum onto hair

26
Q

Sebum

A

Protects and lubricates hair

27
Q

Rule of nines

A

Burns with 20% or more are life threatening

28
Q

First degree burns

A

Only epidermis

Redness

Heals in one week

No scarring

29
Q

Second degree burn

A

Epidermis and part of dermis

Accessory structures intact

Blistering

2 weeks to 2 months

Some scarring may occur

30
Q

Third degree burn

A

All the way to hypodermis and tissues beneath

Painless

Healing cannot occur

Skin grafting usually required

Infections likely and life threatening

31
Q

Basal cell carcinoma

A

Most common

Stratum basale

Rarely spreads

Small shiny bump

32
Q

Squamous cell carcinoma

A

Stratum spinosum

Can spread to lymph nodes

Lesions are raised reddened and scaly

33
Q

Malignant melanoma

A

Most deadly

Often arises from the melanocytes of a pre-exsisting mole

Spreads quickly and drug resistant