Exam 3: integumentary system Flashcards

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1
Q

3 layers of skin from top to bottom

A

epidermis
dermis
hypodermis

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2
Q

epidermis cell composition and function

A
squamous cells: protection and production of melanin
K: keratinocytes
LL: langerhans cells, lamellar granules
MM: synthesizes melanin, merkel cells
B: basal cells
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3
Q

dermis cells

A

collagen, elastin fibers, blood vessels and capillaries

Composed of papillary layer (our fingerprints)

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4
Q

what makes up 80% of the dermis and is made of a thick dense irregular connective tissue

A

reticular layer

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5
Q

hypodermis fct

A

fat storage, insulation, energy storage, shock absorbtion

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6
Q

nail fct + location

A

protection, toes+fingers

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7
Q

where does the nail grow

A

epidermis

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8
Q

sweat gland fct + location

A

protects skin, thermoregulation and excretion: dermis

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9
Q

sebaceous glands

A

secrete sebum to lubricate and protect skin: epidermis

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10
Q

by what are sebaceous glands surrounded by

A

epidermal cells

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11
Q

hair follicles fct + location

A

anchor hair and grow more hair: in dermis

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12
Q

in what do hair grow

A

epidermis

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13
Q

thick vs thin skin

A

Thick skin: hairless, feet+hands+fingers+toes, dermis thinner, epidermis thicker, no skin appendages except sweat glands
Thin skin: hairs, dermis thicker, epidemris thinner

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14
Q

skin cancer cause and symptom

A

cause: uv
symptom: abcde rule

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15
Q

eczema cause and treatment

A

cause: genetics, environment, stress
symptom: red spot, itching, dry swollen skin

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16
Q

alopecia cause and treatment

A

cause: genetics, stress, hormonal change
symptom: hair loss

17
Q

temperature regulation in human

A

see loop