Cartilage is a type of connective tissue found in the body. It is a firm, flexible tissue that provides support and cushioning to the body.

Structure of Cartilage
Cartilage is made up of cells called chondrocytes, which are embedded within a matrix of collagen fibers and proteoglycans. Collagen fibers provide strength and structure to the cartilage, while proteoglycans help to attract and hold water, giving the cartilage its characteristic flexibility and shock-absorbing properties.

Types of Cartilage
There are three main types of cartilage found in the body:

1. Hyaline cartilage: This is the most common type of cartilage and is found in the joints, ribs, and nose. It is a smooth, white tissue that provides cushioning and support to the joints.

2. Fibrocartilage: This type of cartilage is found in the intervertebral discs of the spine and in the knee joint. It is a tough, dense tissue that can withstand a lot of pressure and provides shock absorption.

3. Elastic cartilage: This type of cartilage is found in the ear and nose. It is more flexible than hyaline cartilage and can bend and stretch without breaking.

Functions of Cartilage
The main function of cartilage is to provide support and cushioning to the body. It also helps to absorb shock and reduce friction in the joints. Additionally, cartilage helps to maintain the shape of certain structures in the body, such as the nose and ears.

Conclusion
In conclusion, cartilage is an important type of connective tissue that provides support and cushioning to the body. It is made up of cells called chondrocytes, collagen fibers, and proteoglycans. There are three main types of cartilage found in the body: hyaline, fibrocartilage, and elastic cartilage. The functions of cartilage include support, cushioning, shock absorption, and maintaining the shape of certain structures in the body.

Some additional parts of skeleton that are not as hard as the bones and which can not be Bent. These are called "Cartilage".