Cartilage, Bone, and Skeletal Muscle VM Orientation Flashcards
What is connective tissue?
mature cells suspended within the ECM
What is cartilage specialized for? What is bone specialized for?
Cartilage-flexible support, resilient
Bone- specialized for rigid support
Compare the ECM of cartilge and bone.
cartilage- hydrated, mostly water and proteoglycan
bone-organic part-type I collagen
Mineralized part=calcium and phosphorus
What are the resident cells of cartilae? how about bone?
cartilage-chondrocytes
bone- osteocytes, osteoclasts
what are the precursor cells for cartilage?
bone?
cartilage-chrondroblasts
bone- osteoblasts
compare vascularity of cartilage and bone
carilage-avascular
bone-vascular
what is the covering of cartilage? bone?
cartilage-perichondrium
bone-periosteum
how doe cartilage grow? bone?
cartilage-appositional and interstitial
bone-appositional
What kind of cartilage is this?
hyaline
What is this pink surrounding the cartilage. what is it involved in
perichondrium
appositional growth
what kind of cartilage is this? where do we find it
Elastic cartilage
-auricle, tip of nose, where you want it to be, very flexible
What kind of cartilage is this?
fibrocartilage
What kind of bone is this?
Lamellar!! mature. collagen fibers are laid down in layers, hence the name lamellar
What kind of bone is this?
woven-immature bone, collagen type I are interlaced with eachother
What is this?
compact bone decalcified
What is this?
compact bone ground
What is this?
Trabecular/cancellous bone decalcified
Identif these components of the osteon
Haversian canal
canaliculi
psteocyte in lacuna
concentric lamella
interstitial lamella
What are these labeled bone cells?
osteocytes
osteoclasts
osteoblasts
what do skeltal muscle fibers look like histologcally?
striated
large! called fibers
contain multiple nuclei located peripherally
Idntify these labels
myofirbils:
A band-thick
I band-thin
Z-line: in center of I band.
