integumentary test Flashcards
what is the 3 main layers of the integumentary system
- epidermis
- dermis
- hypodermis
what are the different glands
sweat gland and sebaceous gland
1. sweat: eccrine sweat and aprocrine odor glands help with temp regulation
2. sebaceous: produces oil to keep skin moist and keep pathogens away
what does the integumentary system include?
hair, skin, nails, sweat glands, sebaceous glands
what does the integumentary system do for the body
- provides a protection from the outside world
- regulating body temperature
- sensing the world around you
which layer of skin is respnsible for skin temperature?
- dermis layer
what type of gland is most responsible for the prodcution of sweat?
eccrine gland
what is the main function of the epidermis layer
protection
when the body is too hot, what is done to satisfy the need of cooling down?
- sweating
TorF: the dermis contains sweat glands and hair follicles.
- true
TorF: the integumentary system does not aid in the immune system
- false
what is melanin? what does it do for the skin?
- melanin is the creation of pigment in a persons skin. more melanin = more colour.
- it absorbs uv rays to keep it from harming the skin and potentially getting skin cancer
what is keratine?
- the structure material of proteinthat helps make the hair, nails, and skin
which type of skin cell is primarily responsbiel for making keratine?
- keratinocytes
what is the purpose of the sebaceous gland?
- produce oil to keep the skin moisturized
TorF: cartilage is part of the integumentary system.
- false
what is the function of the hypodermis?
to produce insulation and store energy
why does body odor occur?
- bacteria thrives in the moisture of sweat and breaks down the chemicals
how does the integumentary system contribute to homeostasis in the body?
- the integumentary system regulates temperature, prevents water loss, produces vitamin D, and provides a barrier against the outside world.
how does vitamin a help the skin?
- vitamin a is needed to prevent skin damage, and potentially skin cancer
how does aging effect the integ. system?
- there is less collagen being produced, which can lead to thinner skin and reduced elasticity.
what cells are responsible for prodcing melanin?
- melinocytes
what are the tissues that do not contain blood?
- avascular
what role do sensory receptors play in the integ. system?
- it detects enviromental changes, detects pain and pressure
what percentage is melanocytes and keratinocytes made up of?
keratinocytes: 90%
melanocytes: 8%
how do you know if a part of your body has a lot of melanin?
- moles and freckles means there is a lot of melanin in a specific spot.
what are some skin conditions found in the epidermis?
- dandruff, eczima, in-grown, acne, skin cancer
what is more sensitive, hypodermis, epidermis, or dermis?
- the dermis layer
what does dermis contain of?
- dermis contains the hair follicle, sweat glands, connective tissues, nerve endings, collagen, and elastin
what does hypodermis do?
- insulation for your body (main fat layer)
- most blood vessels
-cushion/absorber
what does blanching mean?
- blanching is when your skin turns white, and it is because you are afraid, sick, or have low blood pressure
what are the three types of cancer?
- malignant metanoma, squamous cell carcinoma, basal cell carcinoma
what is basal cell carcinoma?
- most common type, but least dangerous and most treatable type of cancer, and is small, red, and flattened bumps which are red and pale.
- effects the epidermis
what is squamous cell carcinoma
- the least common type of cancer, but more dangerous than basal cell carcinoma cancer.
what is malignant melanoma?
- the most dangerous type of cancer and affects the melinocytes. the fastest spreading cancer
TorF: the integ. system is responsible for the creation of red blood cells
F; the red lood cells are produced by bone marrow
TorF: eccrine glands are responsible for odor
f; apocrine glands are responsible for body odor
what tissues are finger nails made out of?
- they are made out of keratine, and are considered dead cells
what is acne caused by?
- the overproduction of sebum, and clogged pores
is albinism caused by a lack or exess amount of melanin?
- lack
