Cartilage Flashcards
where are blood vessels for cartilage found?
perichondrium (cartilage itself is avascular)
these are created as chondrocytes undergo mitosis. several chondrocytes grouped together in same lacuna.
isogenous group
Identify 3 arrows.
- territorial matrix
- interterritorial matrix
- isogenous cell group
lighter staining area between the isogenous groups- more collagen here
interterritorial matrix
where is elastic cartilage found?
auricle, auditory canal, auditory tube, epiglottis
Tissue type?
Elastic cartilage
3 types of cartilage
hyaline elastic fibrocartilage
where is hyaline cartilage found?
articular surfaces, nose, larynx, tracheal rings, epiphyseal plates, fetal bone bodels
ECM has high __ strength
tensile (can withstand mechanical forces)
how is arrangement of elastic cartilage different than hyaline cartilage?
more chondrocytes, smaller isogenous groups
is perichondrium present in hyaline cartilage?
yes (a few exceptions)
is perichondrium present in elastic cartilage?
yes.
matrix of hyaline is __ due to high concentration of GAGs, so it stains __ (color)
basophilic bluish-purple
cells that come directly from mesenchymal cells, lay down ECM
chondroblasts
surrounds most cartilage- is a dense connective tissue capsule covering
perichondrium
cells that are completely surrounded by ECM in a lacuna
chondrocytes
Identify.
- chondroblast
- chondrocyte
- perichondrium
perichondrium is ___ so it stains ___ (color)
eosinophilic, pink
Identify 3 arrows.
- lacunae
- interterritorial matrix
- territorial matrix
Identify tissue type. Identify cell.
Elastic cartilage. Adipocyte
is perichondrium found in fibrocartilage?
no
where is fibrocartilage found?
intervertebral discs, public symphysis, tendon-bone anchorages
most common type of cartilage in human body
hyaline
Identify.
isogenous groups
this tissue looks like an intermediate between dense regular connective tissue & hyaline cartilage. chondrocytes are arranged in long rows separated by coarse collagen fibers.
fibrocartilage
As you age, elastic cartilage is replaced by ___
adipocytes
why aren’t type 2 collagen fibers visible in ECM of hyaline cartilage sections?
because they have same refractive index as surrounding ECM
Identify.
- chondrocytes
- chondroblasts
Identify tissue type.
What fibers are present?
fibrocartilage
Type 1 collagen
Identify tissue type.
elastic cartilage.
all connective tissue arises from ___
mesenchyme
basophilic matrix around each of the isogenous groups, rich in GAGs, negative charge, less collagen
territorial matrix
Identify tissue type.
elastic cartilage
type of collagen fiber found in hyaline cartilage?
type 2
growth by addition to existing surface, generation of new chondroblasts
appositional growth
growth by internal expansion, proliferation of chondrocytes & formation of isogenous groups
insterstitial growth
elastic cartilage is different from hyaline cartilage because it contains ___
elastic fibers
type of collagen present in fibrocartilage?
type 1
Identify tissue type.
Identify 1-3.
Fibrocartilage
- Chondrocytes
- Fibroblasts
- Type 1 Collagen fibers
osteoclasts are derived from __ & osteoblasts are derived from __
hematopoietic stem cells mesenchymal stem cells
Identify 1-3.
- Territorial Matrix
- Lacuna
- Interterritorial matrix
