Chapter 2: extra stuff Flashcards
Where does hair start growing
Follicle - in the dermis
What part of the hair can you see and what can’t you see
Root - inside skin
Shaft - out of skin
what does length of hair depend on
depends on growth rate and life span
arrector pilli
attached to hair follicle - stands up when you have goosebumps
glands (sebaceous)
oil glands
- protects hair follicles
– Prevents bacteria growth
– Prevents dry skin
glands (sweat)
– Mostly water
– Sodium chloride – salt
– A little bit of ammonia/urea
Most common sweat gland and what it does
Merocrine - eccrine
- all over the place – most sweat glands – go directly to the surface
– Used to cool you off
Body odor sweat gland
Aprocine
- Active at puberty
– Sweat glands in armpits and genital area
nails
– come out of corneum stratum
– Nail root is under skin
– nail bed is under nail
aging
– Loss of hypodermis – makes skin sag
– Loss of fat – old people get colder – lack of hypodermis layer
– Elastic fibers wear out – wrinkles
– Dermis becomes thinner as you age
burns (1st degree)
A burn to the epidermis
– Usually sunburn
– Sometimes when you touch a hot stove quickly
burns (2nd degree)
A burn to the dermis
– Often gives blisters – don’t pop – infection can get in
– Swollen
– More painful
– Could be bad sunburn
burns (3rd degree)
A burn to the hypodermis
– Might have to have skin changes – no nerves
– Skin is missing
– Black or white
psoriasis
– Malfunction – could be immune system
– Skin could get flaky – elbows, knees, back, feet, hands – itchy
Dandruff
– Too much of corneum starts flaking off scalp could be too oily or too dry
– Caused by yeast like fungus
Eczema
– Dry, itchy, inflamed skin – something is going wrong
basal cell carcinoma
– Patch on skin that is different than normal
– Most common skin cancer
melanoma
– Asymmetry – changing shape
– Border – not clean line – fuzzy
– Changes color
– Diameter – bigger
squamous cell carcinoma
– 99% of cases can be healed if caught early
– Usually a wart
chickenpox
– Some strain of the herpes virus
– Attack skin
Shingles
– Can affect nerves
– Caused by the herpes virus after you have chickenpox
herpes simplex
– Cold sores
– No cure
warts
– Affects mostly kids – usually on hands
– Build up of keratinocytes
– HPV – gives warts – STD – cervical cancer can be caused due to HPV
Blackheads
– Pimple – clogged oil plus dead skin cells – white blood cells
– Sebaceous glands become blocked
– If exposed to air, it turns black
integumentary system and the skeletal system
Integumentary system vitamin D for skeletal system
Skeletal system gives structure for the integumentary system
Integumentary system and muscular system
Integumentary system makes vitamin D for the muscular system
Muscular system gives goosebumps and facial expressions to integumentary system
Integumentary system and the nervous system
integumentary system gives sensation to the nervous system
The nervous system controls blood vessels and sweat glands for the integumentary system
Integumentary system in the endocrine system
integumentary system gives vitamin D to endocrine system, which makes hormones
Endocrine system controls hair growth for the integumentary system
Integumentary system and cardiovascular system
integumentary system gives a blood reserve for the cardiovascular system
Cardiovascular system gives oxygen and nutrients for the integumentary system
Integumentary system in the lymphatic system
The integumentary system gives barrier pathogens/protection for the lymphatic system
The lymphatic system sends white blood cells for protection for the integumentary system
The integumentary system in the respiratory system
The integumentary system gives hairs and nose to filter air for the respiratory system
The respiratory gives oxygen for the integumentary system
The integumentary system in the digestive system
The integumentary system gives vitamin D to the digestive system
The digestive system gives nutrients or food to the integumentary system
The integumentary system in the urinary system
The integumentary system gives water balance to the urinary system
The urinary system gets rid of waste for the integumentary system
The integumentary system and the reproductive system
The integumentary system makes milk for the reproductive system
The reproductive system develops sexual organs for the integumentary system
