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Nasal Cavity The Respiratory System
Structure and Anatomy Divisions. Vestibule The area lying just posterior to the nostrils, this is the part of the nasal cavity most exposed to the threats of the environment. So, this part is lined with multiple layers of the same cells that make up our skin stratified squamous epithelium , forming a .
Respiratory System Wikipedia
In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.The lower tract Fig. . includes the lower part of the larynx, the trachea, bronchi, bronchioles and the alveoli..
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Respiratory System. An online study guide to learn about the structure and function of the respiratory system using interactive animations and diagrams..
Pharynx Wikipedia
The pharynx plural pharynges is the part of the throat behind the mouth and nasal cavity and above the esophagus and larynx, or the tubes going down to the stomach and the lungs.It is found in vertebrates and invertebrates, though its structure varies across species. In humans, the pharynx is part of the digestive system and the conducting zone of the respiratory system..