The extra cellular matrix+bones Flashcards
function of ECM
provides structure and support of the body
fibroblast
loose connective tissue -surrounding glands and blood vessels
structure of fibroblast
collagen-is thick and elastin-is thin and mixing it together from the matrix
chondrocyte- cartilage
tissue constructed of matrix -surround by cartilage cells
cartilage cells
more dense and flexible than bone
osteocyte
bone
ECM 1st part
fibrous proteins:collagen and elastin -strength and flexibility
ECM 2nd part
hydrated gel-like matrix: protein polycharrid, which are called proteogylacans-glycoprotiens with glycosaminglygen linkages
collagen
rigid-contains collagen which are close together
elastin
multiple polypeptide
bones
structure support and attachment sites for body -helps store minerals
osteogenesis
formation of bone-secretes matrix
hydroxyapitate
calcium +phosphate crystals -are in collagen fibres made by osteocytes
2 types of bone
1.cortical:compact -strong and dense
2.cancellous:spongy -network of trabecula less dense compared to cortical
osteocytes
small chambers called lacunae and are linked by canaliculi and form rings called lamellae around haverian canal which houses blood vessels
what makes up the bone
osetoclasts and osteoblasts
where do osteoclasts come from
hematopoietic stem cells
synarthroses
immovable joints
amphiarthroses
slightly moveable joint
diathroses
freely moveable
fibrous joints
immovable
cartilaginous joints
immoveable, slightly immovable
synovial joints
freely moveable
elastic cartilage
contains flexible type 3 collagen fibres and elastin
