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Questions and Answers
What is the main cellular component of cartilage?
What is the main cellular component of cartilage?
- Chondrocytes (correct)
- Osteocytes
- Fibroblasts
- Adipocytes
What is the primary function of the extracellular matrix (ECM) in cartilage?
What is the primary function of the extracellular matrix (ECM) in cartilage?
- Support and protection of chondrocytes
- Diffusion of material from blood vessels (correct)
- Conduction of electrical signals
- Storage of fat molecules
What is the vascular status of cartilage?
What is the vascular status of cartilage?
- Moderately vascularized
- Sparsely vascularized
- Avascular (correct)
- Highly vascularized
Which of the following cartilaginous tissues serve(s) as a model for long bones of the fetal skeleton?
Which of the following cartilaginous tissues serve(s) as a model for long bones of the fetal skeleton?
In the accompanying collage of light micrographs of cartilaginous tissues, which numbered type would be involved in the lengthening of bones during the growth period?
In the accompanying collage of light micrographs of cartilaginous tissues, which numbered type would be involved in the lengthening of bones during the growth period?
Which of the following are the main components of healthy articular cartilage?
Which of the following are the main components of healthy articular cartilage?
Which of the following characterizes osteoarthritic hyaline cartilage?
Which of the following characterizes osteoarthritic hyaline cartilage?
In the accompanying collage of light micrographs of cartilaginous tissues, which feature makes cartilages 1 and 4 different from cartilages 2 and 3?
In the accompanying collage of light micrographs of cartilaginous tissues, which feature makes cartilages 1 and 4 different from cartilages 2 and 3?
Formation of long bones depends on the presence of a hyaline cartilage model. By which mechanism(s) hyaline cartilage model grows to acquire the shape of the future long bone?
Formation of long bones depends on the presence of a hyaline cartilage model. By which mechanism(s) hyaline cartilage model grows to acquire the shape of the future long bone?
What makes SR’s articular hyaline cartilage incapable of full recovery?
What makes SR’s articular hyaline cartilage incapable of full recovery?
In the vertebral column, herniation of the intervertebral disc is best described by which of the following?
In the vertebral column, herniation of the intervertebral disc is best described by which of the following?
Which type of cartilage is found in the intervertebral discs and is prone to developing fissures and potentially leading to disc herniation?
Which type of cartilage is found in the intervertebral discs and is prone to developing fissures and potentially leading to disc herniation?
What is the main structural component of the annulus fibrosus in the intervertebral discs?
What is the main structural component of the annulus fibrosus in the intervertebral discs?
Which type of cartilage is found in articular surfaces and is irreparable if injured due to the absence of perichondrium?
Which type of cartilage is found in articular surfaces and is irreparable if injured due to the absence of perichondrium?
What is the process of hyaline cartilage formation from mesenchyme tissue through the differentiation of chondroblasts called?
What is the process of hyaline cartilage formation from mesenchyme tissue through the differentiation of chondroblasts called?
In which type of cartilage can rows of chondrocytes be observed separated by type I collagen fibers?
In which type of cartilage can rows of chondrocytes be observed separated by type I collagen fibers?
Which type of cartilage contains type II collagen fibrils, proteoglycans, and multi-adhesive glycoproteins in the extracellular matrix?
Which type of cartilage contains type II collagen fibrils, proteoglycans, and multi-adhesive glycoproteins in the extracellular matrix?
Which type of cartilage is located in the trachea and bronchi?
Which type of cartilage is located in the trachea and bronchi?
What is the characteristic feature of hyaline cartilage due to different concentrations of proteoglycans in the matrix?
What is the characteristic feature of hyaline cartilage due to different concentrations of proteoglycans in the matrix?
What is the type of growth that involves new cartilage at the surface of preexisting cartilage?
What is the type of growth that involves new cartilage at the surface of preexisting cartilage?
What is the main component of the nucleus pulposus in the intervertebral discs?
What is the main component of the nucleus pulposus in the intervertebral discs?
What is the primary component of fibrocartilage located in the intervertebral discs and pubic symphysis?
What is the primary component of fibrocartilage located in the intervertebral discs and pubic symphysis?
What is the process of cartilage formation from mesenchyme tissue through the differentiation of chondroblasts?
What is the process of cartilage formation from mesenchyme tissue through the differentiation of chondroblasts?
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Study Notes
Types of Cartilage and Their Characteristics
- Three types of cartilage: Hyaline cartilage, Elastic cartilage, Fibrocartilage
- Hyaline cartilage: Contains type II collagen fibrils, proteoglycans, and multi-adhesive glycoproteins in the extracellular matrix (ECM)
- Hyaline cartilage: Shows metachromasia due to different concentrations of proteoglycans in the matrix
- Hyaline cartilage: Found in articular surfaces, epiphyseal growth plate, trachea, and bronchi
- Fibrocartilage: Contains chondrocytes, chondrocytes fibroblasts, and type I collagen
- Fibrocartilage: Located in intervertebral discs, pubic symphysis, and attachment of ligaments to articular cartilage
- Chondrogenesis: Process of hyaline cartilage formation from mesenchyme tissue through the differentiation of chondroblasts
- Cartilage growth: Involves both appositional growth (new cartilage at the surface of preexisting cartilage) and interstitial growth (new cartilage within the cartilage mass)
- Articular cartilage: Irreparable if injured due to absence of perichondrium at sites where cartilage makes direct contact with bone
- The annulus fibrosus of intervertebral discs is made of concentric fibrocartilage, while the nucleus pulposus contains viscous fluid rich in hyaluronan and type II collagen fibrils
- Fibrocartilage in the intervertebral disc can develop fissures, leading to disc herniation and potential compression of spinal nerves
- Fibrocartilage can be observed in photomicrographs as rows of chondrocytes separated by type I collagen fibers.
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