Nikki Kuiper Flashcards
What are the components of cartilage?
Chondrocytes 3% Collagens 15% Proteoglycans 10% Water 70-80% Other 3%
What are the three main cartilage types?
Elastic
Fibrocartilage
Hyaline (articular)
What is the function of Chondrocytes?
To synthesise and degrade matrix
What are proteoglycans?
They have a protein core with glycosaminoglycans attached
What is the function of a proteoglycan aggregate?
It provides tissue hydration and compressibility
What’s the function of collagen?
Tensile strength and durability
Where would you find elastic cartilage?
And what is its function?
Ear
Larynx
Epiglottis
It provides elasticity and maintains shape
Where would you find fibrocartilage?
And what’s its function?
Intervertebral discs
Menisci
It’s a shock absorber, resists compression and provides durability
Where would you find hyaline cartilage?
What’s its function?
Nose Trachea Fetal skeleton Costal cartilage It's a shock absorber tougher than fibrocartilage
Where would you find hyaline articular cartilage and what’s its function?
In articulating joints
It has a smooth articulating surface and distributes load evenly to underlying bone
What are the two types of bone?
Compact (hard) outer layer
Cancellous (spongy) inner layer
What are the three bone cell types and what are there functions?
Osteoclasts- resorb it
Osteoblasts- build it
Osteocytes- maintain it
Without minerals what happens to bone?
It bends
Without collagen what happens to bone?
It breaks
What are the three main types of joints?
Fibrous
Cartilaginous
Synovial
