Upper Respiratory Tract Anatomy

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 structural and functional anatomy nose and nasal cavity.

Upper Respiratory Tract Respiratory System Anatomy

Perhaps one of the most obvious examples of anatomical differences is in the structure of the turbinates.

Upper respiratory tract anatomy. The respiratory system is divided into two main components. Upper respiratory tract of the respiratory system lesson 2 in our respiratory system series. 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 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. They warm and clean the air we inhale. The respiratory tract is divided into the upper airways and lower airways.

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. Ventilation movement of air into out of the lungs 2. The respiratory system functions to supply the body with o2 and remove co2 respiration is actually 4 distinct processes.

Anatomy of the respiratory system nose and nasal cavity. The upper respiratory system or upper respiratory tract consists of the nose and nasal cavity the pharynx and the larynx. Inside the nose the sticky mucous membrane lining the nasal cavity traps dust particles.

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. There are a number of differences and similarities macroscopically and microscopically between the species. External respiration gas exchange between blood and air filled chambers of the lungs 3.

These structures allow us to breathe and speak. Composed of the nose the pharynx and the larynx the organs of the upper respiratory tract are located outside the chest cavity. Mucous membranes lining upper respiratory structures trap some foreign particles including smoke and other pollutants before the air travels down to the lungs.

The nostrils the two round or oval holes below the external nose are the primary entrance into the human respiratory system 5. This is part of our anatomy and physiology lecture series. Upper respiratory system anatomy.

The anatomical characteristics of the upper respiratory tract of various experimental animals and man are described. 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.

The rear of the laryngopharynx merges with the esophagus to continue the digestive tract. Lying just after the nostrils are the two nasal cavities lined with mucous membrane and tiny hair like projections called cilia 6.

Respiratory System Of The Dog