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;
20 Cards in this Set
- Front
- Back
|
what do myofibroblasts do
|
participate in wound healing
|
|
|
what do brown adipose cells have that normal ones don't
|
many lipid droplets (multilocular)
a central nucleus many mitochondria increased innervation and vascularization of the tissue |
|
|
where do mast cells originate and differentiate
|
They start out in the marrow from cells lacking cytoplasmic granules and differentiate on site, in the connective tissue where they wind up
|
|
|
what is the most abundant type of collagen
|
Type I
|
|
|
what are the 4 main amino acid components of collagen
|
glycine, proline, hydroxyproline, hydroxylysine
|
|
|
collagen bits spit out of fibrocytes are called
enzymes clean up the end and they're called |
procollagen
tropocollagen |
|
|
lots of tropocollagen bits line up in a very orderly way to make a
|
collagen fibril
|
|
|
side by side crosslinking of collagen fibrils forms
|
a collagen fiber
|
|
|
what type collagen:
bone, tendon, dentin and skin provides tensile strength |
Type I
|
|
|
what type collagen:
reticular lamina of basement membrane, component of reticular fibers |
Type III
|
|
|
what type collagen:
basal lamina each molecule binds to binding sites of lamina |
Type IV
|
|
|
what type collagen:
Hyaline and elastic cartilage observed as fibrils |
Type II
|
|
|
what type collagen:
Amnion and Chorion in the fetus, muscle and tendon sheaths. Does not form banded fibrils |
Type V
|
|
|
what is the first type of collagen synthesized during wound healing
|
Type III reticular
|
|
|
the three developmental stages of elastic fibers
|
oxytalan
elaunin elastic elastic fibers require a special stain |
|
|
is there hydroxyproline in elastic fibers?
what is a major protein component of them? |
No
Fibrillin elastin stretches and relaxes, forming a different random coil each time |
|
|
what are dermatan sulfate
chondroitin sulfate keratan sulfate heparan sulfate what do they look like in action? |
glycosaminoglycans
they are the brushes on the bottle brush |
|
|
what are fibronectin, laminin, chondronectin
|
the adhesion molecules of glycoproteins
|
|
|
what is a proteoglycan
|
a great long fiber of hyaluronane, woven among the collagen fibers, with bottle brushes down it's length, glycosaminoglycans on core proteins
|
|
|
what are the two components of ground substance
|
glycoproteins and glycosaminoglycans
|
