Upper Respiratory Tract Anatomy

The upper respiratory system or upper respiratory tract consists of the nose and nasal cavity the pharynx and the larynx. Upper respiratory tract structural and functional anatomy nose and nasal cavity.

Upper Respiratory Tract Disorders Current Diagnosis

The nose and nasal cavity form the main external opening for the respiratory system and are the first section of the bodys airwaythe respiratory tract through which air moves.

Upper respiratory tract anatomy. When you breathe in through your nose or mouth the air is filtered through natural lines of defense that protect against illness and irritation of the respiratory tract. Upper respiratory tract of the respiratory system lesson 2 in our respiratory system series. The rear of the laryngopharynx merges with the esophagus to continue the digestive tract.

The upper airways or upper respiratory tract includes the nose and nasal passages paranasal sinuses the pharynx and the portion of the larynx above the vocal folds cords. External respiration gas exchange between blood and air filled chambers of the lungs 3. The respiratory system is divided into two main components.

The respiratory tract is divided into the upper airways and lower airways. Mucous membranes lining upper respiratory structures trap some foreign particles including smoke and other pollutants before the air travels down to the lungs. Ventilation movement of air into out of the lungs 2.

The nose is a structure of the face made of cartilage bone muscle and skin that supports and protects the anterior portion of the nasal cavity. These structures allow us to breathe and speak. Inside the nose the sticky mucous membrane lining the nasal cavity traps dust particles.

Lying just after the nostrils are the two nasal cavities lined with mucous membrane and tiny hair like projections called cilia 6. The respiratory system functions to supply the body with o2 and remove co2 respiration is actually 4 distinct processes. The upper respiratory and upper digestive tracts diverge after the laryngopharynx.

The laryngopharynx is the posteriormost portion of the pharynx reaching from the hyoid to the cricoid cartilage. Upper respiratory tract the major passages and structures of the upper respiratory tract include the nose or nostrils nasal cavity mouth throat pharynx and voice box larynx. The nostrils the two round or oval holes below the external nose are the primary entrance into the human respiratory system 5.

They warm and clean the air we inhale. This is part of our anatomy and physiology lecture series. Composed of the nose the pharynx and the larynx the organs of the upper respiratory tract are located outside the chest cavity.

Upper respiratory system anatomy. Perhaps one of the most obvious examples of anatomical differences is in the structure of the turbinates. Anatomy of the respiratory system nose and nasal cavity.

The anatomical characteristics of the upper respiratory tract of various experimental animals and man are described. There are a number of differences and similarities macroscopically and microscopically between the species.

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