BRS-HISTO CH7 "Cartilage and Bone Flashcards
is an avascular specialized fibrous connective tissue
cartilage
what has chondrocytes in its matrix
cartilage
what functions primarily to support soft tissues and assist in the devel- opment and growth of long bones.
cartilage
is the most abundant cartilage in the body and it also serves as a temporary skeleton in the fetus until it is replaced by bone.
hyaline cartilage
Matrix of Hyaline Cartilage has what in it?
- proteoglycans
- chondrocytes
- type 2 collagen
matrix that is adjacent to chondrocytes is called
territorial matrix
is a layer of dense, irregular connective tissue that surrounds hyaline cartilage except at articular surfaces.
perichondrium
what provides the nearest blood supply to the avascular cartilaginous tissue.
perichondrium
manufacture the cartilage matrix through which nutrients and waste materials pass to and from the cells, respectively.
chondroblasts
are mature cartilage cells that are embedded within lacunae in the matrix.
chondrocytes
what has type 2 collagen eslatic fibers and has a present perichondrium?
elastic cartilage
location of hyaline cartilage
end of long bones
nose
trachea
larynx
location of elastic cartilage
ear
auditary canal
epiglottis
location of fibrocartilage
iv disc
poobus symph
tendons
meniscus of knee
histogenesis of hyaline cartilage happens how
interstitial growth
appositional growth
results from cell division of preexisting chondrocytes. This type of growth occurs only during the early stages of cartilage formation and in articular car- tilage and the epiphyseal plates of long bones.
intersitial growth
results from differentiation of chondrogenic cells in the peri- chondrium. This type of growth results in the formation of chondroblasts and/or new chondrocytes, which elaborate a new layer of cartilage matrix at the periphery.
appositional growth
degeneration of hyaline cartilage happens how
chondrocytes undergo hypertrophy ad die, also the matrix calcifies
arthritis is an example of
degeneration of hyaline cartilage
It is a specialized type of connective tissue with a calcified extracellular matrix in which characteristic cells are embedded.
Bone
functions to protect vital organs, support fleshy structures, and provide a calcium reserve
Bone
bone matrix consists of
inorganic (calcified) portion of bone
organic portion of bone
about 65% of dry weight
inorganic portion of bone