Larynx Anatomy Overview

Larynx Anatomy Overview

• The larynx is a crucial structure in the respiratory system, aiding in voice production and protecting the airway during swallowing.

Epiglottis

• A leaf-shaped flap that covers the trachea during swallowing to prevent food and liquids from entering the airway.
• Plays a vital role in directing food to the esophagus and air to the lungs.

Hyoid Bone

• A U-shaped bone in the neck that supports the tongue and is the only bone in the human body not directly attached to other bones.
• Serves as an anchor point for muscles involved in swallowing and speech.

Thyroid Cartilage

• The largest cartilage of the larynx, commonly referred to as the Adam's apple.
• Provides structure to the larynx and protects the vocal cords, located just below the hyoid bone.

Cricoid Cartilage

• A ring-shaped cartilage located below the thyroid cartilage, it is the only complete circular cartilage in the respiratory tract.
• Acts as a base for the larynx and helps maintain airway patency.

Trachea

• Also known as the windpipe, this tube extends from the larynx to the bronchi, allowing air passage to and from the lungs.
• Composed of C-shaped cartilaginous rings that prevent collapse while allowing flexion.

Epiglottis (Back View)

• The back view reveals the epiglottis’ position relative to the larynx, emphasizing its role in airway protection during swallowing.

Thyroid Cartilage (Back View)

• Observing the thyroid cartilage from the back highlights its prominence and the attachment points for surrounding muscles and ligaments.

Hyoid Bone (Back View)

• The back view showcases the hyoid's unique structure and its placement in the neck, reinforcing its support role for muscle attachments in the larynx and tongue.

Vocal Cords

• Also known as vocal folds, they are located within the larynx, crucial for sound production during phonation.
• Vibrate when air from the lungs passes through, allowing for voice modulation and pitch variation.