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39 Cards in this Set

  • Front
  • Back
what is the body's largest organ?
skin
what layer of the skin is a keratinized stratified squamous epithelium?
epidermis
what layer of the skin is made of connective tissue containing elastic, reticular, collagen, & fibroblasts?
the dermis
what layer of the skin is also known as the subcutaneous layer or the superficial fasia?
hypodermis
what layers of the skin are highly vascular?
the hypodermis and the dermis
what is subcutaneous fat primary composed of?
adipose
what causes yellowing of the skin and whites of the eyes resulting from high levels of bilirubin?
jaundice
what causes blueness of the skin resulting from a deficiency of oxygen and the circulation of blood?
cyanosis
social functions (non verbal communication), thermoregulation, sensation, water and UV barrier, resistance to trauma & vitamin d synthesis are all:
functions of the skin
stem cells, keratinocytes, melanocytes, tactile (merkel) cells & dendritic (langerhans) cells are all:
cells of the epidermis
what cells in the epidermis destroy bacteria?
dendritic (langerhans) cells
what is melanin produced by?
melanocytes
where can melanin be found?
in keratinocytes
what is erythema?
redness of the skin due to dilated cutaneous vessels (sun burn, anger, embarrassment)
what type of hair is the only type that is pigmented?
terminal
what is lanugo hair?
fetal hair
what is vellus hair?
fine unpigmented hair of women and children
pattern baldness if a sex influenced trait that is dominant in males because of?
high testosterone levels
hirsutism is a hormone imbalance. what is the result of hirsutism?
excessive hair growth
what causes goose bumps?
piloerector muscle
where are ceruminous glands found?
in ear canal
sebaceous glands produce?
an oily secretion that have short ducts open to a hair follicle
what glands produce sweat to help cool the body?
merocrine
what glands produce sweat containing fatty acids/ body odor in response to stress and sex?
apocrine
what type of skin cancer is the least dangerous?
basal cell carcinoma
what type of skin cancer arises from keratinocytes in the stratum spinosum and goes to the lymph nodes, can be lethal?
squamous cell carcinoma
what type of skin cancer is the most deadly and arises from melanocytes of a preexisting mole?
malignant melanoma
This layer is absent in thin skin:
stratum lucidum
what color hair has a sparse amount of melanin in the cortex?
blonde
The oily secretion that prevents the skin from drying and cracking is:
sebum
Mammary glands are modified _____ sweat glands.
apocrine
does apocrine sweat have a disagreeable odor?
no
The ______ of the bulb of each hair is vascularized and supplies the hair with its nutrition.
papilla
The layer of the epidermis where one can find melanocytes is the:
stratum basal
how thick is the dermis?
0.2mm to 4mm
What is a vitamin that cannot be absorbed through the skin? a, c, d, e, or k?
vitamin c
What are anagen, telogen, & catagen cycles of?
hair growth
Which type of skin graft is unlikely to cause an immune reaction?
isograft
The epithelium of the nail bed is called:
hyponychium