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Anatomy > Integumentary System: Ch 5 > Flashcards

Integumentary System: Ch 5 Flashcards

1
Q

Oxygenated, valves, carries blood away from the heart

A

Artery

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2
Q

Deoxygenated, carries blood to the heart

A

Vein

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3
Q

The three regions of the skin

A

Epidermis, dermis, hypodermics

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4
Q

Superficial region

A

Epidermis

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5
Q

Middle region

A

Dermis

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6
Q

Deepest region, mostly adipose tissue

A

Hypodermis

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7
Q

A specialized cell of the epidermis: proton keratin, waterproof

A

Keratinocytes

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8
Q

A specialized cell of the epidermis: it is in the lower epidermis and contains pigment melanin for skin color

A

Melanocytes

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9
Q

A specialized cell of the epidermis: macrophages for immunity

A

Langerhans cells

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10
Q

A specialized cell of the epidermis: tactile(touch) receptors

A

Tactile(merkel) cells

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11
Q

Order of the layer from superficial to deep

A

CLGSM

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12
Q

A layer of the epidermis with 20-30 rows that is flat and keratinized: it protects, waterproofs, and acts as a barrier

A

Stratum corneum

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13
Q

A clear layer of the epidermis in thick-skinned palms of hands and soles of feet. It’s rows are flat and dead keratinocytes. It’s function is protection.

A

Stratum lucidum

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14
Q

A thin layer of the epidermis which the cells are beginning to flatten. It contains keeatohyaline and lamellated granules accumulations. Granular layer.

A

Stratum granulosum

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15
Q

Prickly layer of the epidermis with a web like system of prekeratin filaments attached to desmosomes (cell junction). Abundant melanin granules and dandratic cells for immunity.

A

Spinosum

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16
Q

The deepest layer of the epidermal firmly attached to the dermis. It contains a single row of stem cells. Cells undergo rapid division or are highly mitotic. Skin grows from inside to out and the journey from basal layer to surface takes 25 to 45 days.

A

Stratum basale

17
Q

The best only dry membrane which has three regions

A

Skin

18
Q

This is a region of the skin that has strong connective tissue, contains all tissue types, and has two layers.

A

Dermis

19
Q

The two layers of the dermis

A

Papillary and reticular

20
Q

A layer of the dermis that has areolar connective tissue with collagen and elastic fibers and blood vessels. It contains capillary loops, meissner’s corpuscles, and free nerve endings.

A

Papillary layer

21
Q

A thick layer of the dermis that contains collagen fibers which provide strength and resiliency. It also contains elastic fibers which provide stretch and recoil properties.

A

Reticular layer

22
Q

Epidermal nidges atop papillary ridges to form this of fingerprints.

A

Friction ridges

23
Q

Collagen fibers arranged in bundles form this. Incisions made parallel to theses heal more readily.

A

Cleavage lines

24
Q

What are the three pigments that contribute to skin color?

A

Melanin, carotene, hemoglobin

25
Q

A pigment of the skin that is yellow to reddish brown to black: responsible for dark skin colors: freckles and pigmented miles are accumulations of this

A

Melanin

26
Q

A skin pigment that is yellow to orange and most obvious in the palms and soles

A

Carotene

27
Q

Red protein that carries O2 in blood

A

Hemoglobin

28
Q

A derivative of the epidermis with two main types

A

Sweat glands

29
Q

Sweat glands abundant on palms, soles, and forehead: ducts connect to pores: function in thermoregulation

A

Eccrine

30
Q

A type of sweat gland confined to axillary and above anogenital areas: sebum(sweat and fatty substances and protein): ducts connect to hair follicles: functional to puberty onward: ceremonious glands and mammary glands

A

Apocrine

31
Q

In external ear canal; secrete wax

A

Ceruminous glands

32
Q

A gland that is widely distributed, usually develops from hair follicles, and becomes active at puberty. Sebum and bactericidal softens hair and skin.

A

Sebaceous glands (oil)

33
Q

Functions: alert the body of presence of objects on skin and protect the scalp against trauma, heat loss, and sunlight: it has dead keratinized cells which is more durable than soft keratin of skin

A

Hair

34
Q

This occurs with decreased melanin production and increased air bubbles in shaft

A

Grey/white hair

35
Q

This is a smooth muscle attached to follicle which is responsible for goose bumps

A

Arrector pili

36
Q

Fine body hair

A

Vellus

37
Q

Coarse, long hair of eyebrows, scalp, pubic regions

A

Terminal

38
Q

Hair thinning in both sexes after age 40

A

Alopecia

39
Q

Modification of the epidermis

A

Nail

Anatomy (14 decks)

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