Cartilage

Definition

Cartilage is a flexible connective tissue found in various parts of the body, including joints, rib cage, ear, nose, and bronchial tubes. It provides support and cushioning to these areas while allowing for smooth movement and flexibility.

5 Must Know Facts For Your Next Test

1. Cartilage is avascular, meaning it does not contain blood vessels; nutrients are supplied through diffusion.
2. There are three types of cartilage: hyaline cartilage, fibrocartilage, and elastic cartilage.
3. Hyaline cartilage is the most common type and is found in the nose, trachea, and at the ends of long bones.
4. Nutritional deficiencies, particularly in vitamin C and D, can impair cartilage health and repair.
5. Chondroitin sulfate and glucosamine are two supplements often used to support cartilage health.

Review Questions

• Which nutrients are crucial for maintaining healthy cartilage?
• What are the three types of cartilage and where can each be found in the body?
• Why is cartilage considered avascular and how does it receive nutrients?

Related terms

Hyaline Cartilage: The most common type of cartilage found in joints, respiratory tract structures like the trachea, and at the ends of long bones.

Fibrocartilage: A tough type of cartilage that contains dense bundles of collagen fibers; it is found in intervertebral discs and menisci.

Elastic Cartilage: Cartilage that contains elastic fibers providing flexibility; it is found in structures such as the ear and epiglottis.