Term
| Hyaline Cartilage functions |
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Definition
-cushion articular surfaces
-provide structure for respiratory system
-provide template for long bone formation
-usually has pericardium, except around joints |
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Term
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Definition
| space occupied by cells in cartilage matrix. during fixation, cells shrink but matrix does not, leaving artifact |
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Term
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Definition
-cell of hyaline cartilge
-give rise to chondroblasts,
-spindle-shaped, like fibroblast
-derived from mesenchyme
-located in perichondrium |
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Term
|
Definition
-cell of hyaline cartilge
-makes most of the matrix, cuboidal to round |
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Term
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Definition
cell of hyaline cartilge
derived from chondroblasts, maintain matrix but less active than the chondroblasts. |
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Term
| Fibers in EM of Hyaline Cartilage |
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Definition
Collagen Type II (major)
elastic fibers (minor) |
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Term
| Does Hyaline Cartilage EM have a blood supply? |
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Definition
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Term
| Hyaline Cartilage Ground substance |
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Definition
-lots of water
-lots of aggrecan (proteoglycan with hyaluronic acid)
-chondronectin |
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Term
|
Definition
-a glycoprotein attaching chondrocytes
to collagen
-in Hyaline Cartilage Ground substance |
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Term
| Hyaline Cartilage territorial matrix |
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Definition
-matrix next to chondrocyte
-lots of chondroitin sulfate (GAG)
-stains dark blue |
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Term
| Hyaline Cartilage interterritorial matrix |
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Definition
-most of matrix
-stains light blue |
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Term
| Elastic Cartilage function and location |
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Definition
-More flexible than
hyaline cartilage but provides some rigidity
-Found in auricle of the ear, walls of the auditory
canals, epiglottis, and larynx. |
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Term
| Elastic cartilage structure |
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Definition
-cells are yellow in real life
-has pericardium |
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Term
|
Definition
| -matrix has tons of elastic fibers and type II collagen |
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Term
|
Definition
-intermediate between dense connective tissue and hyaline cartlige
-NO pericardium
-contains type I collagen |
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Term
|
Definition
1. in IV
2. connects tendons to hyaline cartilage and bone, joins
pubic symphysis, forms menisci of knee. |
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Term
| embryo and fetal growth of cartilage |
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Definition
| mesenchymal cells (embryonic fibroblasts) round up and divive --> mesenchyme differencate into chondroblasts --> chondroblasts secrete matrix |
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Term
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Definition
division of chondroblasts and
chondrocytes from within the cartilage |
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Term
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Definition
division of chondrogenic cells in
the perichondrium and their differentiation into
chondroblasts that divide and produce cartilage
beneath the periosteum. |
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Term
| Hormonal Stimulators of cartilage cells: |
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Definition
| IGF-1, thyroid hormone, and testosterone |
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Term
| Hormonal Inhibitors of cartilage cells |
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Definition
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Term
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Definition
surgical technique where small holes
are created on the bone surface of a joint where the cartilage has
been lost. This causes bleeding and fibrocartilage formation on
the surface of worn joint surfaces. |
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