Vertebrates - Animals with Backbones -> cartilage

What is Cartilage?

Cartilage is a type of connective tissue found in the human body. It is a firm, flexible tissue that is not as hard as bone but is stiffer and less flexible than muscle.

Types of Cartilage

There are three main types of cartilage in the human body:

1. Hyaline cartilage: found at the ends of bones, in the nose, and in the trachea and larynx.
2. Elastic cartilage: found in the external ear and parts of the larynx.
3. Fibrocartilage: found in the intervertebral discs and in some joints.

Functions of Cartilage

Cartilage serves several important functions in the body:

• It provides a smooth surface for joint movement.
• It acts as a shock absorber in the joints.
• It provides structure and support to the body, such as in the nose and ears.

Cartilage Growth and Repair

Unlike other types of connective tissue, cartilage does not have its own blood supply. As a result, it has a limited capacity for self-repair. Cartilage growth and repair are slower processes compared to other tissues in the body.

Study Guide

Here are some key points to remember about cartilage:

1. What are the three main types of cartilage in the human body?
2. What are the functions of cartilage in the body?
3. How does cartilage differ from bone and muscle in terms of hardness and flexibility?
4. Why does cartilage have a limited capacity for self-repair?