Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
epidermis
|
superficial part of skin; simple squamous epithelium
|
prevents abrasion/water loss; produces vitamin D
|
|
|
stratum corneum
|
most superficial; 25+ layers of dead cells
|
provision of structural strength; prevention of water loss by lipids
|
|
|
stratum lucidum
|
only in thick skin; 3-5 layers dead
|
dispersion of keratohyalin
|
|
|
stratum granulosum
|
two to five layers of flattened cells
|
production of keratohyalin cells
|
|
|
stratum spinosum
|
8-10 levels of many sided cells
|
production of keratin fibers
|
|
|
stratum basale
|
deepest strata of epidermis; single layer of cuboidal or columnar; basement layer attached to dermis
|
production of cells of superficial strata; melanocytes produce melanin
|
|
|
dermis
|
deep part of skin; connective tissue
|
responsible for structural strength/flexibility; exchanges gas/nutrients with epidermis
|
|
|
papillary layer
|
project toward epidermis; loose connective (aerolar tissue)
|
brings blood close to epidermis; form fingerprints/footprints
|
|
|
reticular layer
|
dense irregular CT; mat of collagen/elastic fibers
|
strong in many directions
|
|
|
subcutaneous tissues
|
not part of the skin; loose CT
|
attaches dermis to underlying tissues; provides energy/insulation
|
|
|
keratinocyte
|
a flattened cell found in the skin which produces the protein keratin
|
|
|
|
keratin
|
a protein which hair and nails are comprised of
|
|
|
|
melanocyte
|
a cell in the basal layer of the epidermis that produces melanin under the control of the melanocyte-stimulating hormone
|
|
|
|
melanin
|
insoluble pigments that account for the color of e.g. skin and scales and feathers
|
|
|
|
merkel cell
|
associated with the sense of light touch discrimination of shapes and textures
|
|
|
|
langerhans' cell
|
dendritic cells in the skin that pick up antigen and transport it to lymph nodes; help activate immune system
|
|
|
|
erythema
|
increased blood flow; red color
|
|
|
|
cyanosis
|
blueish color; decreased oxygen
|
|
|
|
lanugo
|
fetal hair
|
|
|
|
sebaceous glands
|
simple/compound alveolar glands that secrete sebum
|
|
|
|
merocrine
|
produce non-oderous sweat
|
|
|
|
apocrine
|
sweat with bacteria; axillary and pubic
|
|
|
|
ceruminous glands
|
in the ear
|
|
