36 Questions
What is the orientation of collagen fibers in the deep zone of hyaline cartilage?
Randomly arranged
Where do chondrocytes in the superficial zone of hyaline cartilage tend to be located?
Densely packed
What happens to the proteoglycan content as you move from the surface to the middle zone in hyaline cartilage?
It increases
What role do inorganic ions such as Ca, Na, Cl, and K play in hyaline cartilage?
Generate swelling pressure
Which region of hyaline cartilage lacks fibrous and chondrogenic layers?
Perichondrium
What type of collagen orientation is seen on the superficial layer of hyaline cartilage?
Parallel to the surface
What is the main function of hyaline cartilage in joint capsules?
Support and transmit loads across mobile surfaces
Which component of hyaline cartilage produces collagen and proteoglycans?
Chondrocytes
What is the most abundant protein in the body that is found in the organic matrix of hyaline cartilage?
Collagen
What is the function of proteoglycans in hyaline cartilage?
Store water
How does the distribution of chondrocytes influence the structure of hyaline cartilage?
Affects mechanical and physicochemical behavior
What component of hyaline cartilage contains free mobile cations that influence its behavior?
Water
What is the primary function of collagen in cartilage?
To provide tensile strength
Which component of cartilage is responsible for its low hydraulic permeability and high compressive stress resistance?
Proteoglycans
What is the structural arrangement of proteoglycans in cartilage?
They are attached at right angles to a long filament
What is the consequence of damage to proteoglycans in cartilage?
Increased water mobility and impaired mechanical function
Which component of cartilage forms structural networks that support internal mechanical stresses resulting from external loads?
Proteoglycans and collagen
Which statement about the composition of cartilage is correct?
It contains dissolved inorganic salts and has a high water content
What is the orientation of collagen fibers in the middle layer of hyaline cartilage?
Oblique
What is the role of inorganic ions such as Ca, Na, Cl, and K in hyaline cartilage?
Generate swelling pressure
Where do large fibers from the deep zone of hyaline cartilage anchor into?
Subchondral bone
What is the main function of water in hyaline cartilage?
Produce swelling pressure
What is the orientation of collagen fibers in the superficial zone of hyaline cartilage?
Parallel to articular surface
What happens to the proteoglycan content as you move towards the deep zone in hyaline cartilage?
Diminishes
What is the primary function of proteoglycans in hyaline cartilage?
Increasing water mobility
Which component of hyaline cartilage forms structural networks that support internal mechanical stresses resulting from external loads?
Collagen
How does damage to proteoglycans impact the mechanical function of hyaline cartilage?
Impairs mechanical function
What role do inorganic salts play in the composition of hyaline cartilage?
Increasing water content
Which feature is characteristic of the tissues with high proteoglycan content in hyaline cartilage?
High compressive stress resistance
What is the main function of collagen in creating a framework within hyaline cartilage?
Providing tensile strength
What is the primary role of water content in hyaline cartilage?
Maintains the osmotic pressure and swelling properties of the cartilage matrix
How does the orientation of collagen fibers in the deep zone of hyaline cartilage differ from the superficial zone?
In the deep zone, collagen fibers are oriented perpendicular to the joint surface, while in the superficial zone they are parallel
What is the primary function of proteoglycans in the organic matrix of hyaline cartilage?
Regulate the hydration and swelling properties of the matrix
What is the primary function of the calcified cartilage zone in hyaline cartilage?
Anchor the overlying hyaline cartilage to the underlying subchondral bone
How does the proteoglycan content vary within the different zones of hyaline cartilage?
Proteoglycan content is lowest in the superficial zone and increases with depth
What is the primary role of the subchondral bone in relation to the overlying hyaline cartilage?
Anchor and support the overlying cartilage, transmitting forces through the joint
Learn about the composition of hyaline cartilage, including the arrangement of its components for biomechanical functions and the role of proteoglycan and collagen in providing structural support. Explore how collagen creates a framework for cartilage and contributes to its tensile strength.
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