Dermatology Chp 4

Front 1

name for study of the skin and medical profession that deals with the diagnosis and treatment of skin disorders?

Back 1

dermatology

Front 2

7 functions of the integument

Back 2

-physical protection
-lipid synthesis/ storage
-synthesis of vitamin D
-immune defense
-thermoregulation
-excretion
-sensory reception

Front 3

two layers of the integument (superficial to deep)

Back 3

epidermis
dermis

Front 4

what layer of of tissue lies just deep to the integument

Back 4

subcutaneous layer

Front 5

what tissues form the subcutaneous layer

Back 5

areolar connective tissue
adipose connective tissue

Front 6

what type of tissue form the epidermis

Back 6

keratinized stratified squamous epithelial

Front 7

name of the basal layer of the epidermis

Back 7

stratum germinativum/ stratum basal

Front 8

what special cells within the stratum germinativum explains its name

Back 8

stem cells: division of stem cells

Front 9

what is the name of the apical layer of the epidermis

Back 9

stratum corneum

Front 10

what is the obvious difference between this apical layer of the epidermis and some of the deeper layers

Back 10

the cells are dead

Front 11

why doesnt the epidermis bleed?

Back 11

avascular

Front 12

where is thin skin

Back 12

most of the body

Front 13

where is thick skin

Back 13

palm, soles, corresponding surface of digits

Front 14

thin skin areas lack hair and tend to have more sweat glands. What else do these areas lack

Back 14

sebaceous glands

Front 15

what 3 pigments contribute to skin color?

Back 15

*melanin
-hemoglobin
-carotene

Front 16

what term refers to the medical condition where the skin takes on a bluish tones as a result of a sustained reduction in blood oxygen supply to the superficial tissues

Back 16

cyanosis

Front 17

what layer of the dermis is superficial and contain capillaries and sensory receptors. what tissue forms this layer

Back 17

papillary layer
-areolar connective tissue

Front 18

what layer of the dermis is deep and contains blood vessels, nerves, hair follicles and glands. what tissue forms this layer

Back 18

reticular layer
-dense irregular tissue

Front 19

what are lines of cleavage. why are they clinically important (how do they influence the direction of an incision)

Back 19

tension lines indicating the direction of the collagen fibers
-perpendicular incisions heal more slowly and gape more than parallel incisions to the lines of cleavage

Front 20

why do stretch marks occur

Back 20

stretch exceeds the elastic capacity of the dermis
-lateral bonding of the collagen fibers disrupted
-rupture of small blood vessels and scar tissue forms

Front 21

what term means: distribution of nerves to or in a part

Back 21

innervation

Front 22

a decrease if blood vessel diameter to help regulate body temperature or blood pressure?

Back 22

vasoconstriction

Front 23

an increase in blood vessel diameter to help regulate body temperature or blood pressure

Back 23

vasodilation

Front 24

from what layer are the accessory structures of the integument derived

Back 24

epidermis

Front 25

what is the name of the muscle that causes goosebumps

Back 25

arrector pili

Front 26

why does chemotherapy cause hair loss

Back 26

it targets rapidly dividing cells such as cancer cells and hair cells

Front 27

fine, un-pigmented hairs of a developing fetus

Back 27

lanugo

Front 28

fine, short hair lightly or un-pigment hair (peach fuzz)

Back 28

vellus

Front 29

course, short or long pigmented hair

Back 29

terminal

Front 30

what type if gland discharges a waxy/oily substance into a hair follicle or directly onto the surface of the epidermis. technical name of this secretion

Back 30

sebaceous gland
-sebum

Front 31

general term for sweat glands

Back 31

suboriferous gland

Front 32

type of sweat gland is located in places such as the axilla, begins secreting at puberty and may produce pheromones along with sweat?

Back 32

apocrine gland

Front 33

what type of sweat gland occurs all over the body being particularly dense on the palmar surface of the hand and the plantar surface of the foot, and is responsible for cooling the skin

Back 33

mammary glands

Front 34

what kind of gland, a modified sweat gland, produces yellowish, waxy secretions that combine with oily secretions from other glands and exfoliated keratinocytes to produce ear wax

Back 34

ceruminous gland

Front 35

what animal group is defined by the presence of nails instead of claws

Back 35

primates

Front 36

What is the name for the region at the proximal end of the name, where the cell division take place to produce new nail cells

Back 36

nail matrix

Front 37

what is the name of the pale crescent at the posterior edge of the nail

Back 37

lunula

Front 38

in what layer of the skin os the pigment from tattooing deposited

Back 38

dermis

Front 39

what form of skin cancer is the most common, originates in the basal layer of the skin and is unlikely to metastasize

Back 39

basal cell carcinoma

Front 40

what form of skin cancer occurs in squamous tissue but in the skin occurs commonly in the areas exposed to the sun and doesnt commonly metastasize

Back 40

squamous cell carcinoma

Front 41

what form of skin cancer occurs in the pigment producing cells, metastasizes to the lymphatic system and is very dangerous

Back 41

melanoma