Lab Test 1 CH6 Flashcards

1
Q

skin and its derivatives: nails, hair, sweat glands, and sebaceous (oil) glands

A

Components of the integumentary system

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2
Q

another name for the integument

A

Cutaneous membrane

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3
Q

Two distinct layers– a layer of stratified squamous epithelium called the epidermis, and a deeper layer of primarily dense irregular connective tissue called the dermis

A

layers that make up the integument

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4
Q

connects and nourishes the epidermis, produces sweat and oil

A

function of dermis

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5
Q

protection

A

function of epidermis

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6
Q

What is the epidermis composed of

A

keratinized, stratified squamous epithelium

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7
Q

What is the dermis composed of

A

Dense irregular connective tissue

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8
Q

What is another name for the hypodermis

A

Subcutaneous layer

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9
Q

What are the layers from deep to superficial of the epidermis

A

stratum basale, stratum spinosum, stratum granulosum, stratum lucidum (found in thick skin only), and the stratum corneum

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10
Q

What is another name for stratum basale

A

Basal layer

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11
Q

What are epidermal dendtric cells (dendritic) know for

A

Immune cells that fight infection in the epidermis

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12
Q

Where the keratinocytes fill up with the protein keratin, and in so doing, cause both the cell’s nucleus and organelles to disintegrate and the cell dies

A

keratinization

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13
Q

What is another name for stratum lucidum

A

Clear layer

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14
Q

Where is the stratum lucidum found

A

Thick skin in hands and feet, protects from UV rays

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15
Q

number of epidermal strata and the relative thickness of the epidermis

A

Classification of skin as either thick or thin

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16
Q

life expectancy of an epidermal cell

A

About 4 weeks

17
Q

Where is thin skin found

A

Covers most of the body

18
Q

Where is thick skin found

A

Palms of hands and soles of feet

19
Q

Projections of the dermis in the papillary layer of the dermis

A

dermal papillae

20
Q

What is the papillary layer of the dermis composed of

A

Areolar connective tissue

21
Q

Composed of dense irregular connective tissue surrounding hair follicles, sebaceous glands and sweat glands, nerves, and blood vessels

A

reticular layer of the dermis

22
Q

What is the subcutaneous layer composed of

A

Areolar and adipose connective tissue

23
Q

nails, hair, and exocrine glands of the skin

A

integumentary structures are derived from the epidermis

24
Q

A single hair

25
What are the two most common types of exocrine glands
Sudoriferous glands and sebaceous glands
26
Clear secretion released by exocytosis called sweat
merocrine gland secretion
27
Viscous and cloudy liquid containing both proteins and lipids that are acted upon by bacteria to produce a distinct, noticeable odor called pheromones
apocrine gland secretion
28
An oily, waxy secretion called sebum
sebaceous gland secretion
29
Around hair follicles to keep skin and hair from becoming dry and cracked
sebaceous gland location