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Q 1/27
Score 0
outermost protective shield composed of layers of epithelial cells
30
Epidermis
Q 2/27
Score 0
makes up bulk of the skin, strong & flexible, tough leathery layer of dense connective tissue
30
dermis
27 questions
Q.
outermost protective shield composed of layers of epithelial cells
1
30 sec
Q.
makes up bulk of the skin, strong & flexible, tough leathery layer of dense connective tissue
2
30 sec
Q.
subcutaneous tissue just deep to the skin sharing some of the skins protective functions
3
30 sec
Q.
most superficial layer; 20-30 layers of dead cells, essentially flat membranous sacs filled with keratin. Glycolipids in extracellular space.
4
30 sec
Q.
epidermal layer absent in thin skin; 2-3 layers of clear, flat, dead, keratinocytes with indistinct boundaries.
5
30 sec
Q.
typically one to 5 layers of flattened cells, organelles deteriorating ; cytoplasm full of lamellar granules (releasing lipids) and keratohyaline granules.
6
30 sec
Q.
Several layers of keratinocytes unified by desmosomes. Cells contain thick bundles of intermediate filaments made of pre-keratin.
7
30 sec
Q.
deepest epidermal layer; one row actively mitotic stem cells; some newly formed cells becoming part of more superficial layers. See occasional melanocytes and dendritic cells. AKA - stratum germanitivum
8
30 sec
Q.
located in epidermis, chief role is producing keratin, majority of edipermal cells
9
30 sec
Q.
spider shaped epithelial cells that synthesize melanin, found in deepest layer of epidermis
10
30 sec
Q.
arise from bone marrow to migrate to epidermis, ingest foreign substances and key activators of immune system, aka Langerhans cell
11
30 sec
Q.
a sensory receptor for touch in the epidermis, present at epidermal junction shaped like a spiky hemisphere, and associated with a disc-like nerve ending.
12
30 sec
Q.
fibrous protein that gives epidermis protective properties
13
30 sec
Q.
cells junctions that are "like velcro" connecting cells and producing a tension-resisting network.
14
30 sec
Q.
made in skin, polymer of tyrosine amino acids; forms a pigment shield on the sunny-side of keratinocytes that protects from UV radiation.
15
30 sec
Q.
membrane-bound granules that motor proteins along actin filaments to ends of melanocyte's processes and to nearby keratinocytes.
16
30 sec
Q.
areolar connective tissue, interlacing collagen and elastic fibers form loosely woven mat that is heavily invested with small blood vessels, allowing phagocytes and defensive cells to wander freely.
17
30 sec
Q.
peg-like projections from surface of papillary layer indent overlying epidermis and contain capillary loops or free nerve endings (pain receptors) and touch receptors
18
30 sec
Q.
caused by dermal ridges that cause epidermal ridges assumed to enhance grip in in fingers and feet.
19
30 sec
Q.
coarse, dense irregular connective tissue of the dermis containing pockets of adipose cells and thick bundles of interlacing collagen fiber in its extracellular matrix.
20
30 sec
Q.
yellow to orange pigment found in some plants (like carrots), collects in stratum coreum and converts to vitamin A.
21
30 sec
Q.
oxygenated pigment in red blood cells capillaries
22
30 sec
Q.
muscle on each hair that moves it upward. causes goose-bumps from cold or fear.
23
30 sec
Q.
baldness
24
30 sec
Q.
sweat glands, on all skin except nipples and external genitalia; 3 million per person
25
30 sec
Q.
eccrine gland secretion; hypotonic filtrate of the blood that passes through secretory cells. 99% water with some salts, vit C, antibodies, dermcidin and traces of metabolic waste
26
30 sec
Q.
oily glands, branched aveolar glands found all over body except thick skin of palms and soles. large on face, neck and upper chest
