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Pulmonary aspiration is the entry of solid or liquid material such as pharyngeal secretions, food, drink, or stomach contents from the oropharynx or gastrointestinal tract, into the trachea and lungs. [1]
Aspiration, suction (medicine) to remove liquid or gas/dust Aspiration, the inhalation of fluid while drinking, a common symptom of dysphagia.; Aspiration, the practice of pulling back on the plunger of a syringe prior to injecting medication.
In phonetics, aspiration is the strong burst of breath that accompanies either the release or, in the case of preaspiration, the closure of some obstruents.In English, aspirated consonants are allophones in complementary distribution with their unaspirated counterparts, but in some other languages, notably most South Asian languages and East Asian languages, the difference is contrastive.
The voiceless glottal fricative, sometimes called voiceless glottal transition or the aspirate, [1] [2] is a type of sound used in some spoken languages that patterns like a fricative or approximant consonant phonologically, but often lacks the usual phonetic characteristics of a consonant.
Aspiration is defined as inhalation of oropharyngeal or gastric contents into the pulmonary tree. Depending on the composition of the aspirate, three complications have been described: [4] Chemical pneumonitis may develop whose severity depends on the pH value and quantity of aspirate. [4]
Typical airflow in a four-stroke engine: In stroke #1, the pistons suck in (aspirate) air to the combustion chamber through the opened inlet valve.. A naturally aspirated engine, also known as a normally aspirated engine, and abbreviated to N/A or NA, is an internal combustion engine in which air intake depends solely on atmospheric pressure and does not have forced induction through a ...
Pharyngeal aspiration is often performed on mice [1] and rats. [5] Prior to introduction of the stubstance, the animal is anesthetized and its tongue extended, preventing the animal from swallowing the material and allowing it to be aspirated into the lungs over the course of at least two deep breaths.
The aspirate h ceased to be pronounced once more in either the 16th or the 17th century, but some grammarians kept insisting for it be pronounced into the early part of the twentieth century. Since the phonological behavior of aspirate h words cannot be predicted through spelling, usage requires a considerable amount of memorisation. It is ...