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A & P 1 > Topic 5: The Integumentary System > Flashcards

Topic 5: The Integumentary System Flashcards

1
Q

Epidermis layers from deepest to top.

A 
Stratum Basale
Stratum Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum
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2
Q

Deepest layer of epidermis

A

Stratum Basale

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3
Q

Synthesis of keratin/Second deepest layer of epidermis

A

Stratum Spinosum

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4
Q

Helps manufacture keratin/Third layer (of 5) in epidermis

A

Stratum Granulosum

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5
Q

Present only in thick skin/Second outermost layer of epidermis

A

Stratum Lucidum

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6
Q

20-30 layer of flattened, keratinized dead cells/outermost layer of epidermis

A

Stratum Corneum

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7
Q

Composed of connective tissue, and housing muscle fibers, blood vessels,hair follicles, exocrine glands, and sensory nerve fibers

A

Dermis

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8
Q

Keratinized stratified squamous epithelium

A

Epidermis

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9
Q

Two layers of the dermis

A

Papillary and Reticular

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10
Q

Layer of the dermis made of loose connective tissue directly underlying the epidermis.

A

Papillary Layer

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11
Q

Associated only with the thick skin of the hands and feet. Due to the pulling of elastic fibers in the papillary layer.

A

Dermal Ridges

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12
Q

Quite distensible and resilient; when over-stretched, it tears,producing ‘stretch marks’

A

Reticular Layer

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13
Q

loose connective tissue and adiposetissue interlaced with blood vessels

A

Subcutaneous Layer

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14
Q

Serves as heat insulator and energy reservoir

A

Adipose tissue

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15
Q

Adipose tissue is generally ___ thicker in ________.

A

8% thicker in women.

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16
Q

Binds skin to underlying organs

A

Subcutaneous Layer

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17
Q

Cause of pink skin coloration

A

blood flow in dermis and subcutaneous layers

18
Q

Cause of temporary yellowish pigment acquired through diet

A

Carotene

19
Q

Permanent cause of yellowish pigment found primarily among people of East Asian descent

A

Thicker Stratum Corneum - more structural protein keratin.

20
Q

Cause of brown skin

A

Higher production of melanin by melanocytes

21
Q

Small, isolated patches of highly concentrated melanin

A

Freckles

22
Q

________ generally have lighter skin. (men or women)

A

Women

23
Q

Two things that prevent excessive amounts of UV radiation from reaching lower mitotic cell layers/dividing cells of stratum germinativum anddermis

A

Melanin and Thicker stratum corneum.

24
Q

Lack of ________ will cause _______ in children and _______ in adults.

A

Vitamin D
Rickets
Osteomalacia

25
Q

Production of vitamin D starts with sufficient amounts of UV radiation reaching the _______.

A

Dermis

26
Q

In areas of extreme low UV exposure (far north or south), ____ ____ will result in decreased production of _________.

A

Dark skin

Vitamin D

27
Q

Vitamin D is necessary for proper _____ _____.

A

Bone growth

28
Q

Rickets symptoms

A

Bowing of bones

29
Q

Osteomalacia symptoms

A

Fatigue, muscle/joint pain

30
Q

______ skin is more susceptible to damage in extreme cold.

A

Dark

31
Q

Houses the hair

A

Follicle

32
Q

Zone of actively dividing cells at the base of the hair

A

Bulb

33
Q

Only part of hair with living cells

A

Bulb

34
Q

Column of flattened, dead keratinized cells within the follicle.

A

Root

35
Q

Column of flattened, dead keratinized cells external to skin surface.

A

Shaft

36
Q

Muscle attached to hair follicle surface and dermis

A

Arrector Pili muscle

37
Q

Muscle responsible for goose bumps

A

Arrector Pili Muscle

38
Q

Responsible for pigmentation of hair

A

Melanocytes located at the base of hair bulb

39
Q

Cause of red hair

A

Iron

40
Q

Function of hair.

A

Protection and Identification

41
Q

Those of ________ descent have the most dense distribution of hair.

A

European

42
Q

_____ _____ and ___________ have the least dense hair distribution.

A

East Asians and Amerindians

A & P 1 (11 decks)

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