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11 Cards in this Set

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Weight bearing connective tissue that is found where both support and flexibility are needed.
Composed of:
1. chondrocytes
2. ground substance
3. connective tissue fibers
Synthesize the ground substance and fibers of the cartilage matrix.
Chondroblasts that are fully surrounded by matrix (mature chondroblast cells).
Territorial Matrix
The matrix immediately surrounding the lacunae that is newly formed and is poor in collagen but rich in glycosaminoglycans.
Membrane surrounding the cartilage. Present in hyaline cartilage and elastic cartilage. Absent in fibrocartilage.
Two layers of Perichondrium
1. Fibrous layer
-Made up of Type I collage fibers and fibroblasts.
2. Chondrogenic layer
-Consists of undifferentiated cells
Types of Cartilage Growth
1.Appositional Growth
-Cells of the chondrogenic layer differentiate into chondroblasts that lay down cartilage matrix
2. Interstitial Growth
-Chondrocytes within the mmatrix divide and the daughter cells lay down more matrix.
-Enlarges from the inside
3 Types of Cartilage
1. Hyaline Cartilage
2. Elastic Cartilage
3. Fibrocartilage
Hyaline Cartilage
Found in the developing skeleton, articular ends of long bones, nose, larynx, trachea, and bronchi, and ventral ends of ribs.
-Type II Collage fibers
-Perichondrium present
-Chondrocytes form cell nests or isogenous groups
Elastic Cartilage
Found in the external ear, Eustachian tube, and some of the laryngeal cartilages where extra resiliency is needed.
-Type II Collagen fibers + MANY elastic fibers
-Perichondrium present
Found at transitions between bone and fibers (e.g. tendon insertions, annulus fibrosis, and pubic symphysis).
-Type I collagen fibers + Type II collagen fibers
-Chondrocytes line up in rows (herring bone pattern)
-No Perichondrium