integumentary test Flashcards
1 most common skin condition in US
Acne
Blackheads and whiteheads are also known as ____________.
Comedones
What is the % of people 14-24 experience minor to severe acne?
85%
what is the name of the bacteria that causes acne?
Bacterium P Acne
what type of cleansers and lotions should we look for when purchasing facial products?
noncomedegenic, nonacnegenic
what are the prime hours to avoid the sun? (in Oregon)
10 am- 4 pm
what outside locations can magnify the sun’s rays?
- snow
- sand
- water
what does broad spectrum?
blocks against UVB and UVA rays
what does UVA protect against?
aging rays
what does UVB protect against?
burning rays
how far in advance should you put on sunscreen before going out?
15-20 minutes
how often should you reapply sunscreen when you are not getting into water?
every 2 hours
what does SPF stand for?
Sun Protection Factor
how long is “water resistant” sunscreen effective?
40 minutes
how long is “very water resistant” effective?
80 minutes
the dermis is also referred to as, the ___________
“True skin”
List 4 structures found in the dermis layer:
- blood supply
- sebaceous glands
- sudoriferous glands
- pain receptors
how does the dermis nourish the epidermis layer?
it has collagen, glands, and the blood supply to bring it nutrients.
what is exfoliation?
the process of the oldest, dead skin layers sloughing off.
sweat glands are also called the _______________ glands.
sudoriferous
the oil glands are also called the ______________ glands.
sebaceous
what are the 2 types of sweat glands?
- eccrine
2. apocrine
where the apocrine glands located and when are they active?
- located in the groin and underarm area
- active when stressed
- connected to hair follicle
which is larger and fewer, eccrine or apocrine?
apocrine
Does the eccrine glands decrease with age?
true
what is another name for the subcutaneous layer?
hypodermis
what is the function of the subcutaneous layer?
to store fat
another name for the sebaceous glands
oil glands
what is sebum and what is its main function?
sebum is an oily substance that makes the skin waterproof
babies are covered with a white substance on them while they are born, this is called ____________________.
vernix caseosa
label the diagram
add diagram here
“integumentary” is Greek for ______________.
covering
list the 5 components the integumentary system is composed of?
- hair
- nails
- skin
- sudoriferous glands
- sebaceous glands
the estimated weight of skin is approximately __________.
20 lbs.
list 5 functions of the skin:
- to protect against bacteria and abrasions
- to protect against dehydration
- temperature regulation
- to feel sensations
- to absorb vitamin D
what happens to your blood vessels and appearance when you are cold?
they constrict, giving you a pale appearance
what happens to your blood vessels and appearance when you are hot?
your blood vessels expand, giving you a flush appearance
what are some sensations that your skin allows you to feel?
pain, heat, touch, pressure
T or F – The epidermis has a large blood supply
False
what is the outermost layer of the skin?
the epidermis
where is the thinnest skin on the body?
around the eyes
where is the thickest skin on the body?
on the hands and feet
what do melanocytes do?
where are they located?
melanocytes produce melanin. They are located at the lowest layer of the epidermis.
pheomelanin produces what skin pigments?
red-yellow pigments
eumelanin produces what skin pigments?
brown pigments
carotene produces what skin pigment?
yellow-orange pigment
what are freckles?
irregular patches of melanin
how can you change your skin color?
with sun exposure
