Podcast
Questions and Answers
What are cartilages made up of?
What are cartilages made up of?
chondrocytes
How many types of adult cartilage are associated with areas of the skeleton?
How many types of adult cartilage are associated with areas of the skeleton?
Which type of cartilage contains no blood vessels?
Which type of cartilage contains no blood vessels?
What is the sheath of dense connective tissue surrounding most cartilaginous structures called?
What is the sheath of dense connective tissue surrounding most cartilaginous structures called?
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Articular cartilage contains perichondrium.
Articular cartilage contains perichondrium.
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What is the most abundant type of collagen in hyaline cartilage?
What is the most abundant type of collagen in hyaline cartilage?
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What are the matrix cavities called that cartilage cells occupy?
What are the matrix cavities called that cartilage cells occupy?
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What is the approximate percentage of water in hyaline cartilage?
What is the approximate percentage of water in hyaline cartilage?
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Which type of cartilage is most susceptible to calcification during aging?
Which type of cartilage is most susceptible to calcification during aging?
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Which feature is typical of elastic cartilage?
Which feature is typical of elastic cartilage?
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The molecular basis for the shock absorbing properties of cartilage involves which of the following?
The molecular basis for the shock absorbing properties of cartilage involves which of the following?
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What distinguishes cartilage from most other connective tissues?
What distinguishes cartilage from most other connective tissues?
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Which area in cartilage is relatively collagen-poor and proteoglycan-rich?
Which area in cartilage is relatively collagen-poor and proteoglycan-rich?
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Flashcards
Cartilage
Cartilage
A tough form of supporting connective tissue with high GAGs and proteoglycans.
Hyaline Cartilage
Hyaline Cartilage
The most common cartilage type, appearing homogeneous with Type II collagen.
Elastic Cartilage
Elastic Cartilage
Cartilage that contains elastic fibers, providing more flexibility.
Fibrocartilage
Fibrocartilage
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Chondrocytes
Chondrocytes
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ECM (Extracellular Matrix)
ECM (Extracellular Matrix)
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Perichondrium
Perichondrium
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Type II Collagen
Type II Collagen
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Glycosaminoglycans (GAGs)
Glycosaminoglycans (GAGs)
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Aggrecan
Aggrecan
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Avascular
Avascular
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Interstitial Growth
Interstitial Growth
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Appositional Growth
Appositional Growth
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Territorial Matrix
Territorial Matrix
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Interterritorial Matrix
Interterritorial Matrix
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Osteoarthritis
Osteoarthritis
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Calcification
Calcification
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Chondrogenesis
Chondrogenesis
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Chondroblasts
Chondroblasts
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Elastic Fibers
Elastic Fibers
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Meniscus
Meniscus
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Pubic Symphysis
Pubic Symphysis
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Chondrosarcoma
Chondrosarcoma
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Shock Absorber
Shock Absorber
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Joint Function
Joint Function
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Nutrient Diffusion
Nutrient Diffusion
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Hyaluronan
Hyaluronan
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Binding Proteins
Binding Proteins
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Matrix Metalloproteinases
Matrix Metalloproteinases
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External Ear Cartilage
External Ear Cartilage
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Study Notes
Cartilage
- Cartilage is a tough, durable supporting connective tissue
- Its extracellular matrix (ECM) has high GAG and proteoglycan concentrations, interacting with collagen and elastic fibers
- Cartilage has structural and protective roles in the skeleton and elsewhere (Figure 7-1)
Types of Cartilage
- Hyaline Cartilage:
- Homogenous, glassy matrix
- Primarily type II collagen, aggrecan
- Found in articular surfaces of joints, respiratory tract, ribs, and epiphyseal plates
- Provides smooth, low friction surfaces in joints, and structural support in the respiratory tract.
- Elastic Cartilage:
- Contains abundant elastic fibers
- Provides support and flexibility
- Found in the external ear, external auditory canals, and eustachian tubes
- Fibrocartilage:
- Mixture of hyaline cartilage and dense connective tissue
- High tensile strength, cushioning properties
- Found in intervertebral discs, pubic symphysis, and attachments of ligaments and tendons
Cartilage Formation, Growth, and Repair
- Develops from embryonic mesenchyme
- Two types of growth:
- Interstitial growth (existing chondrocytes divide and produce new matrix)
- Appositional growth (new chondrocytes are added at the surface from the perichondrium)
- Slow and comparatively ineffective repair process due to lack of blood vessels (avascular)
Cartilage Cells
- Chondrocytes are the main cells
- Chondrocytes occupy lacunae in the matrix
- Chondrocytes are derived from mesenchymal cells through chondrogenesis
- Chondrocytes are responsible for synthesizing and maintaining the extracellular matrix
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Description
Explore the diverse types of cartilage and their functions in the body. This quiz covers hyaline, elastic, and fibrocartilage, detailing their structural features and locations. Test your knowledge on the essential roles cartilage plays in supporting various bodily functions.