The strongest cartilage is found in the intervertebral discs located between the vertebrae of the spinal column.
This strong cartilage is specifically fibrocartilage, also known as white fibrous cartilage. It's designed to withstand significant compression and tension, which is crucial for the spine's ability to support weight, allow movement, and absorb shock.
Why Fibrocartilage is the Strongest
Fibrocartilage differs from other types of cartilage (hyaline and elastic) in its composition:
- High Collagen Content: It contains a large amount of type I collagen fibers, arranged in dense, parallel bundles. This makes it exceptionally strong and resistant to stretching.
- Intermediate Properties: Fibrocartilage bridges the gap between hyaline cartilage and dense connective tissue. It possesses properties of both, providing a combination of resilience and tensile strength.
Other Locations of Fibrocartilage
While the intervertebral discs are a prime example of its strength application, fibrocartilage is also found in other areas subjected to high stress:
- Menisci of the Knee: Provides cushioning and stability.
- Temporomandibular Joint (TMJ): Facilitates jaw movement.
- Pubic Symphysis: Connects the left and right pubic bones.
In summary, while fibrocartilage exists in multiple locations, its role in the intervertebral discs highlights its exceptional strength and importance for spinal function.
