Nasal, Oral, Pharynx and Larynx Cavities

The human respiratory system is a complex network that includes several important cavities: the nasal, oral, pharynx, and larynx. The nasal cavity serves as the primary entrance for air, filtering, warming, and humidifying it before it reaches the lower respiratory tract. The oral cavity also plays a role in breathing, particularly during physical exertion when the nasal passage may not be sufficient. Air then flows into the pharynx, a crucial passage that connects both the nasal and oral cavities to the larynx. The larynx, often referred to as the voice box, not only facilitates sound production but also serves as a protective mechanism, preventing food and liquids from entering the trachea during swallowing. Together, these cavities work in harmony to ensure effective respiration, voice modulation, and safe swallowing, highlighting the intricate design of the human body.

Features:

1. A model of the respiratory system, including the oral, nasal cavities, pharynx and larynx.

2. The upper respiratory tract is dissected into 2 pieces along the medial sagittal plane.

3. 10 parts ,Height 42cm, Width 25cm, Thickness 20 cm, Enlarged approx-2 times big.