Lecture 8 Flashcards
What is an articulation?
Where bones meet.
Soft tissues associated with joints have no ________ component.
Soft tissues associated with joints have no INORGANIC component.
What two main types of cartilage is found in joints?
1: Hyaline/articular cartilage
2. Fibrocartilage
What is the composition of general cartilage?
• Collagen fibres in a ground substance • Chondrocytes live in lacuna • Nutrients diffused through matrix by joint loading- not vascular
Which type of cartilage is designed to resist compression and provide a smooth, frictionless surface?
Hyaline cartilage.
What is the structure of hyaline cartilage?
- Collagen fibres are
barely visible - High water content in
matrix
Which type of cartilage is designed to resist both compression and tension?
Fibrocartilage
What is the structure of fibrocartilage?
- Collagen fibres form bundles throughout matrix - Orientation of fibres aligns with stresses
Hyaline cartilage _____ with age.
Hyaline cartilage degrades with age.
What type of cartilage makes up the meniscus (@ knee joint)?
Fibrocartilage.
What is the meniscus?
Concave discs of
fibrocartilage which adapt to stresses on the joint.
What is bony
congruence?
the sum of the bone surfaces that form an articulation
If there is less bony congruence, there is more ______ _______ ______.
If there is less bony congruence, there is more SOFT TISSUE SUPPORT.
What are ligaments and tendons made of?
- Dense fibrous connective tissue (DFCT)
- Collagen
- Fibroblasts(cytes)
What is the shared function of ligaments and tendons?
To resist tension.
