NOSE (Nasopharynx): The nose is the primary airway used by most conscious adults to breathe. The space behind the nostrils (the nasopharynx) is filled with blood-rich tissue covered in mucus, which warms and cleans incoming air.

Your airways are the part of your respiratory system that air moves through on its way to and from your lungs. They also regulate air temperature and humidity, protect you from harmful substances, clear out mucus, and help you speak and smell.

The respiratory system enables oxygen to enter the body and carbon dioxide to leave the body. The respiratory system starts at the nose and mouth and continues through the airways and the lungs. Air enters the respiratory system through the nose and mouth and passes down the throat (pharynx) and through the voice box, or larynx.

2024年12月17日 · Human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide. The major organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, lungs, and diaphragm. Learn about the anatomy and function of the respiratory system in this article.

2023年7月25日 · The airway, or respiratory tract, describes the organs of the respiratory tract that allow airflow during ventilation. They reach from the nares and buccal opening to the blind end of the alveolar sacs. They are subdivided into different regions with various organs and tissues to perform specific functions.

The respiratory tract is divided into the upper airways and lower airways. 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).

Muscle, blood vessels, and glands in the airway wall are under local and reflex control, and actively respond to changes in the internal and external environments. The respiratory tract is divided into two broad divisions: the upper and lower airways.

Respiratory airways form a typical respiratory surface, thin, moist and vascular. Blood vessels, nerves and lymph vessels run parallel with the airways. The bronchial circulation nurtures the lung tissues.

The airway consists of the entire pathway for air flow from the mouth or nose down to the alveolarsacs. The conducting airways consist of the oro- and nasopharynx, the larnyx, the trachea, the twomain bronchi, the five lobar bronchi (three on the right, two on the left), and the fifteen to twentydivisions of bronchi and bronchioles down to the ...

2023年7月25日 · The airway, or respiratory tract, describes the organs of the respiratory tract that allow airflow during ventilation. They reach from the nares and buccal opening to the blind end of the alveolar sacs. They are subdivided into different regions with various organs and tissues to perform specific fu …