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Chapter 10 > Chapter 10 > Flashcards

Chapter 10 Flashcards

0
Q

Arrector pili muscle

A

Small involuntary muscles in the base of the hair follicle that cause goose flesh when the appendage contracts

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1
Q

Apocrine glands

A

Coiled structures attached to hair follicles found in the underarm and genital areas that secrete sweat

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2
Q

Barrier function

A

Protective barrier of the epidermis the corneum and intercellular matrix protect the surface from irritation and dehydration

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3
Q

Ceremides

A

Glycolipid materials that are a natural part of skins intercellular matrix and barrier function

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4
Q

Collagen

A

Fibrous connective tissue made from protein found in the reticular layer of the dermis, gives skin it’s firmness. Topically a large long chain molecular protein that lies on top of the skin and binds water.

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5
Q

Corneocytes

A

Another name for stratum corneum cell. Hardened waterproof protective keratinocytes, these dead protein cells are dried out and lack nuclei

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6
Q

Dermal papillae

A

Membranes of ridges and grooves that attach to the epidermis contains nerve endings and supplies nourishment through capillaries to the skin and follicles

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7
Q

Dermis

A

Also known as derma Corium cutis or true skin support layer of connective tissue collagen and elastin below the epidermis

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8
Q

Desmosomes

A

The structures that assist in holding cells together intercellular connections made of proteins

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9
Q

Eccrine glands

A

Sweat glands found all over the body with openings on the skins surface through pores not attached to the hair follicles

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10
Q

Elastin

A

Protein fiber found in the dermis gives skin it’s elasticity and firmness

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11
Q

Epidermal growth factor

A

Stimulates cells to reproduce and heal

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12
Q

Epidermis

A

Outermost layer of the skin

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13
Q

Eumelanin

A

A type or melanin that is dark brown to black in color. People with dark colored skin mostly produce eumelanin.

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14
Q

Fibroblasts

A

Cells that stimulate cells, collagen and amino acids that form proteins.

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15
Q

Follicles

A

Hair follicles and sebaceous follicles are tube like openings in the epidermis

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16
Q

Glycation

A

Caused by elevation in blood sugar, glycation is the binding of a protein molecule to a glucose molecule resulting in the formation of damaged nonfunctioning structures known as advanced glycation

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17
Q

Hair papillae

A

Cone shaped elevations at the base of the follicle that fit into the hair bulb. The papillae are filled with tissue that contains the blood vessels and cells necessary for hair growth and follicle nourishment

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18
Q

Hyluronic acid

A

Hydrating fluids found in the skin hydrophilic agent with water binding properties

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19
Q

Hydrolipidic

A

Hydrolipidic film is an oil water balance that protects the skins surface

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20
Q

Intercellular matrix

A

Lipid substances between corneum cells that protect the cells from water loss and irritation

21
Q

Keratin

A

Fibrous protein of cells that is also the principle component of skin hair and nails provides resiliency and protection

22
Q

Keratinocytes

A

Epidermal cells composed of keratin lipids and other proteins

23
Q

Langerhans immune cells

A

Guard cells of the immune system that sense unrecognized foreign invaders such as bacteria and then process these antigens for removal through the lymph system

24
Q

Leukocytes

A

White blood cells that have no enzymes to digest and kill bacteria and parasites. These white blood cells also respond to allergies

25
Q

Lymph vessels

A

Located in the dermis these supply nourishment within the skin and remove waste

26
Q

Melanin

A

Tiny grains of pigment that are produced by melanocytes and deposited into cells in the stratum germinativum later of the epidermis and in the papillary layers of the dermis.

27
Q

Melanocytes

A

Cells that produce skin pigment granules in the basal layer

28
Q

Melanosomes

A

Pigment carrying granules that produce melanin a complex protein

29
Q

Papillary layer

A

Top layer of the dermis next to the epidermis

30
Q

Pheomelanin

A

A type of melanin that is red and yellow in color. People with light colored skin mostly produce pheomelwnin. There are two types of melanin. The other is eumelanin

31
Q

Pores

A

Tube like opening for sweat glands on the epidermis

32
Q

Reticular layer

A

Deeper layer of the dermis that supplies the skin with oxygen and nutrients

33
Q

Rosacea

A

Chronic condition that appears primarily on the cheeks and nose and is characterized by flushing

34
Q

Sebaceous glands

A

Protect the surface of the skin

35
Q

Sebum

A

Oil that provides protection for the epidermis from external factors and lubricates both the skin and hair

36
Q

Stratum corneum

A

Outermost layer of the epidermis

37
Q

Stratum germinativum

A

Active layer of the epidermis above the papillary later of the dermis.

38
Q

Stratum granulosm

A

Layer of the epidermis composed of cells filled with keratin that resemble granules

39
Q

Stratum lucidum

A

Clear transparent layer of the epidermis under the stratum corneum thickest on the palms of hands and soles of feet

40
Q

Stratum spinosum

A

Layer of the epidermis above the stratum germinativum layer containing desmosomes then intercellular connections made of proteins

41
Q

Subcutaneous layer

A

Subcutaneous adipose tissue located beneath the dermis a protective cushion and energy storage for the body

42
Q

Subcutis tissue

A

Fatty tissue found below the dermis that gives smoothness and contour to the body contains fat for use as energy and also acts as a protective cushion for the outer skin

43
Q

Sudoriferous glands

A

Also known as sweat glands excrete perspiration regulate body temperature and detoxify the body by excreting excess salt and unwanted chemicals

44
Q

T cells

A

Identify molecules that have foreign peptides and also help regulate immune response.

45
Q

Telangiectasia

A

Capillaries that have been damaged and are now larger or distended blood vessels commonly couperose skin

46
Q

Transepidermal water loss

A

Water loss causes by evaporation on the skins surface

47
Q

Tyrosinae

A

The enzyme that stimulates melanocytes and this produces melanin

48
Q

UVA radiation

A

Known as aging rays. Longer wavelengths ranging between 320 to 400 nanometers that penetrate deeper into the skin than UVB cause genetic damage and cell death

49
Q

UVB radiation

A

Also known as burning ray’s UVB wavelengths range between 290 and 320 nanometers.

Chapter 10 (1 decks)

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