Upper

Upper Respiratory Tract

The Upper Respiratory Tract (/ˈʌpər rɪˈspɪrətɔːri trækt/) refers to the part of the respiratory system that consists of the organs located above the level of the larynx.

Etymology

The term "Upper Respiratory Tract" is derived from the Latin words 'superior' meaning 'upper', 'respirare' meaning 'to breathe', and 'tractus' meaning 'a course or path'.

Anatomy

The Upper Respiratory Tract includes the following structures:

• Nose and Nasal cavity
• Paranasal sinuses
• Pharynx
• Larynx

Function

The primary function of the Upper Respiratory Tract is to facilitate the passage of respiratory gases (oxygen and carbon dioxide) to and from the lungs. It also warms, humidifies, and filters the air before it reaches the lungs.

Related Terms

• Lower Respiratory Tract
• Respiratory System
• Respiratory Gases
• Lungs

See Also

• Respiratory Tract Infections
• Upper Respiratory Tract Infection

External links

• Medical encyclopedia article on Upper
• Wikipedia's article - Upper

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