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It is less technically difficult than intratracheal instillation the pharynx is higher in the respiratory system than the trachea. Pharyngeal aspiration is the introduction of a substance into the pharynx and its subsequent aspiration into the lungs. It is used to test the respiratory toxicity of a substance in animal testing.
Treating collapsing trachea in dogs can be a daunting prospect for owners. Tracheal collapse occurs when the windpipe becomes flattened and the airflow in and out of the lungs is obstructed.
Its pharynx is connected to the mouth, allowing speech to occur, and food and liquid to pass down the throat. It is joined to the nose by the nasopharynx at the top of the throat, and to the ear by its Eustachian tube. [4] The throat's trachea carries inhaled air to the bronchi of the lungs.
The trachea is the largest tube in the respiratory tract and consists of tracheal rings of hyaline cartilage. It branches off into two bronchial tubes, a left and a right main bronchus . The bronchi branch off into smaller sections inside the lungs, called bronchioles .
The trachea (pl.: tracheae or tracheas), also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all animals lungs. The trachea extends from the larynx and branches into the two primary bronchi.
This marked difference between the composition of the alveolar air and that of the ambient air can be maintained because the functional residual capacity is contained in dead-end sacs connected to the outside air by fairly narrow and relatively long tubes (the airways: nose, pharynx, larynx, trachea, bronchi and their branches down to the ...
The buccopharyngeal fascia is a fascia of the pharynx. [1] It represents the posterior portion of the pretracheal fascia [ 2 ] (visceral fascia) . [ 3 ] It covers the superior pharyngeal constrictor muscles , and buccinator muscle .
In the respiratory tract, from the trachea to the terminal bronchioles, the lining is of respiratory epithelium that is ciliated. [8] The cilia are hair-like, microtubular-based structures on the luminal surface of the epithelium. On each epithelial cell there are around 200 cilia that beat constantly at a rate of between 10 and 20 times per ...
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