Histology Cartilage

2. • To know the types of cartilage and their location in body.
• Understand the functional roles of each type of cartilage
• To be able to identify cartilage in a histology slide.

3. • Cartilage is a special type of connective tissue
• Cartilage serves as a shock absorber to protects joints and
bones
• No vessels or nerves
• Perichondrium present

4. • CELLS
- Chondroblasts
- Chondrocytes
Chondroblasts (Immature cartilage cell)
- Produce the components of extracellular matrix.
- Originate from a type of mesenchymal progenitor cells.
Chondrocytes (Mature cartilage cell)
- Nourishing and maintaining extracellular matrix
- Has lacuna
- Originated from the chondroblasts.

5. • EXTRACELLULAR MATRIX
- Connective tissue fiber
- Ground substance
Connective tissue fiber
- Collagen and Elastic fibers
• Ground substance (Gels)
- Glycosaminoglycans (GAGs)
- Hyaluronic acid
- Chondroitin sulfate
- Keratan sulfate

7. • Most common type
• Hyaline cartilage provides durable protection and supports movable joints
• End of Bones
• Embryonic Skeleton
• Costal Cartilages of the Ribs
• End of the nose
• Tracheal rings

9. • Perichondrium is characteristically absent.
• Found predominantly in the intervertebral disks of the spine.
• Has thick bundles of collagen fibers.
• Meniscus
• Intervertebral discs
• pubic symphysis

11. • Elastic cartilage provides flexible support that helps maintain the
shape of the organs.
• It has a yellowish colour and is surrounded by a perichnodrium.
• Abundance of elastic fibres makes it flexible and resilient.
• Epiglottis
• External ear
• Auditory tube

13. 2 3
1

14. A
D
B
C

15. A
B
C