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Questions and Answers
Which one of these is NOT a characteristic of cartilage?
What is the main role of cartilage in the body?
Which of the following is NOT a type of cartilage based on matrix composition?
Which type of cartilage contains an abundant network of elastic fibers and is found in the external ear and epiglottis?
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What are the two ways in which cartilage can grow?
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What is the major organic component of the extracellular matrix of bone tissue?
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Which type of bone formation occurs in areas of ordinary mesenchyme where osteoblasts differentiate directly within richly vascularized connective tissue?
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Which process involves the invasion of the diaphysis by a periosteal bud containing capillaries, mesenchymal cells, and osteoprogenitor cells?
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Which type of bone growth occurs at the growth plate of long bones?
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Which zone of the growth plate is responsible for matrix production and mitosis?
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Which type of bone tissue has collagen fibres arranged in lamellae?
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Which organelle is prominent in the cytoplasm of the cell described in the text?
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What is the function of hyaline cartilage?
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Where is fibrocartilage found in the body?
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What type of collagen is present in fibrocartilage?
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Study Notes
Cartilage Characteristics
- Cartilage is NOT a characteristic of bone tissue.
- Cartilage provides a framework for the growth and development of bones.
Types of Cartilage
- There are three types of cartilage: hyaline, elastic, and fibrocartilage.
- Elastic cartilage contains an abundant network of elastic fibers and is found in the external ear and epiglottis.
- Fibrocartilage is found in intervertebral discs and the symphysis pubis.
Cartilage Growth
- Cartilage grows through two mechanisms: appositional growth and interstitial growth.
- Appositional growth occurs through the formation of new cartilage on the surface of existing cartilage.
- Interstitial growth occurs through the formation of new cartilage within existing cartilage.
Bone Tissue
- The major organic component of the extracellular matrix of bone tissue is collagen.
- Bone tissue forms through two main processes: intramembranous ossification and endochondral ossification.
- Intramembranous ossification occurs in areas of ordinary mesenchyme where osteoblasts differentiate directly within richly vascularized connective tissue.
- Endochondral ossification involves the invasion of the diaphysis by a periosteal bud containing capillaries, mesenchymal cells, and osteoprogenitor cells.
Bone Growth
- Bone growth occurs at the growth plate of long bones.
- The growth plate is composed of several zones, including a zone of resting cartilage, a zone of proliferation, a zone of maturation, and a zone of hypertrophy.
Bone Tissue Types
- Compact bone tissue has collagen fibers arranged in lamellae.
- The rough endoplasmic reticulum is prominent in the cytoplasm of osteoblasts.
Cartilage Functions
- Hyaline cartilage provides a framework for the growth and development of bones.
- Fibrocartilage is found in areas subject to high stress, such as intervertebral discs and the symphysis pubis.
- Fibrocartilage contains type I collagen.
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Description
Test your knowledge of elastic cartilage with this quiz! Learn about its normal components, location, and histological appearance. Explore the flexibility and support it provides in the external ear, external auditory canal, and epiglottis.
