FMA7309Respiratory
The main airway connecting the larynx to the bronchi. Its cartilage supports keep the airway open during breathing.
Conducts inhaled and exhaled air between the larynx and the primary bronchi while C-shaped cartilage rings maintain airway patency.
Anterior inferior neck and superior mediastinum, descending anterior to the esophagus.
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Breathing depends on pressure changes produced by respiratory muscles, principally the diaphragm and intercostal muscles.
The right ventricle pumps blood to the lungs for oxygenation, and pulmonary veins return oxygenated blood to the left atrium.
Cartilage rings and elastic ligaments keep the trachea and laryngeal airways open during pressure changes.