The Nose Anatomy Song

Understanding the Anatomy and Function of the Nose

Introduction

The nose is not just something that sticks out on our face; it has an important job! It helps us smell things and adds to our overall sensory experience. Let’s dive into how the nose is built and how it helps us smell.

External Anatomy of the Nose

The parts of the nose that we can see include:

• Nasal Root and Bridge: These are the top parts of the nose.
• Apex: This is the tip of the nose.
• Nostrils: These are the holes that let air into the nose.
• Columella: This is the tissue that separates the nostrils.

Everyone has these features, no matter who they are!

Internal Anatomy of the Nose

Inside the nose, there are important parts too:

• Nasal Bone: This bone supports the top of the nose.
• Upper Lateral Cartilage: These are the side walls of the nose.
• Septal Cartilage: This is the divider in the middle of the nose.
• Minor and Major Alar Cartilage: These shape the nostrils. The minor ones are smaller, and the major ones have two parts.
• Accessory Nasal Cartilage: These are on the sides and help shape the nose.

The Sense of Smell

Smelling is one of the first things we learn to do as babies, and it stays important all our lives. Here’s how it works:

1. Odor Molecules: When we breathe in, tiny smell particles enter our nose.
2. Olfactory Epithelium: This special tissue catches the smell particles.
3. Mucus Layer: The particles get stuck in mucus and start to dissolve.
4. Olfactory Receptor Cells: Once dissolved, the particles stick to these cells, which send signals.
5. Olfactory Track: The signals travel to the brain through this path.
6. Brain Interpretation: The brain figures out if the smell is nice or not, which affects how we react.

Conclusion

The nose is a fascinating organ that helps us experience the world through smell. By understanding how it works, we can appreciate how important it is to our lives!