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31 Cards in this Set
- Front
- Back
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Define cartilage.
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Specialized fibrous connective tissue.
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What are mature cartilage cells called?
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Chondrocytes
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T/F - Cartilage is vascular in nature.
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False - It is avascular in nature.
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What are the three functions of cartilage?
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1. Supports soft tissue
2. Provides resilient, yet durable covering for bone. 3. Development and Growth of long bones |
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What are the three types of cartilage?
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1. Hyaline
2. Elastic 3. Fibrous |
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Describe the location of hyaline cartilage. x2
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1. Articular ends of long bones
2. Walls of respiratory passages. (bronchi, larynx, nose, trachea) |
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Describe the matrix of hyaline cartilage. x3
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1. Amorphous ground substance
2. Territorial (capsular) matrix. 3. Interterritorial (intercapsular) matrix. |
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Perichondrium
- type of tissue - location |
Dense irregular connective tissue
Surrounds cartilage except at the articular surfaces. |
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What are the two layers of perichondrium?
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1. Outer fibrous layer
2. Inner cellular layer |
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What are the contents of the outer fibrous layer of the perichondrium?
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Type I collagen, fibroblast, and blood vessels.
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What is the function of the inner cellular layer of Perichondrium?
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Provides chondrogenic cells
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Where do you find chondrocytes?
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Embedded in lacuna.
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What are chondrocytes derived from?
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Chondroblasts
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Chondrocytes contain extensive what? x4
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1. Golgi
2. Glycogen 3. RER 4. Lipid Droplets |
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Describe what is located superficically to chondrocytes.
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Ovoid cells
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Describe what is located deep to the chondrocytes.
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Isogenous groups
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Histogenesis of hyaline cartilage is stimulated by what? x3
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1. Growth hormone
2. Thyroxine 3. Testosterone |
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Histogenesis of hyaline cartilage is inhibited by what? x3
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1. Estradiol
2. Cortisone 3. Hydrocortisone |
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Histogenesis of hyaline cartilage is similar to that of what? x2
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Elastic and fibrocartilage
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Histogenesis occurs by what types of growth? x2
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1. Interstitial growth
2. Appositional growth |
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What is the function of elastic cartilage?
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Give flexible support
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Some locations of the elastic cartilage. x3
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1. Auditory tube
2. Pinna of Ear 3. Epiglottis |
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What is the function of fibrocartilage?
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For support and tensile strength.
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Some locations of the fibrocartilage? x5
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1. Pubic Symphysis
2. Articular disc 3. Intervertebral disc 4. Ligament/tendon insertion 5. Meniscus |
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What does fibrocartilage lack compared to other types of cartilage?
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Perichondrium
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What is a key visible feature of arrangement in fibrocartilage?
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Alternating, parallel rows of fibroblasts.
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Describe the types of collagen for each cartilage.
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Hyaline - Type II
Elastic - Type II Fibrocartilage - Type I |
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What is a key visible feature of arrangement in Hyaline?
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Arranged in groups
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Which cartilage is acidophilic?
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Fibrocartilage
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Which cartilage is basophilic?
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Hyaline
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Which cartilage has no perichondrium?
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Fibrocartilage
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