Cartilage: Structure and Function

Cartilage is a type of connective tissue found in the human body. It is a firm and flexible material that provides support and cushioning to the body's joints, as well as forming certain structural components in the body. There are three main types of cartilage: hyaline, elastic, and fibrocartilage.

Hyaline Cartilage

Hyaline cartilage is the most common type of cartilage in the body. It is found in the nose, trachea, and at the ends of long bones where it forms a smooth surface for joint movement.

Elastic Cartilage

Elastic cartilage is more flexible than hyaline cartilage due to the presence of elastic fibers. It is found in the external ear and parts of the larynx.

Fibrocartilage

Fibrocartilage is the toughest type of cartilage due to its high collagen content. It is found in the intervertebral discs and the knee joint, providing both support and shock absorption.

Functions of Cartilage

• Provides cushioning and support to the joints
• Forms the skeletal structure in early development
• Aids in bone growth and development
• Assists in smooth joint movement

Study Guide

Here are some key points to remember about cartilage:

1. What are the three main types of cartilage?
2. Where is hyaline cartilage found in the human body?
3. What gives elastic cartilage its flexibility?
4. What is the function of fibrocartilage?
5. List at least three functions of cartilage in the body.

Understanding the structure and function of cartilage is important for understanding the body's skeletal system and the maintenance of healthy joints.