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  2. Obligate nasal breathing - Wikipedia

    en.wikipedia.org/wiki/Obligate_nasal_breathing

    While this ability is a common trait of obligate nasal breathers, the definition does not require that nasal breathing is necessary for the animal. Even in obligate nasal breathers such as horses, rabbits, and rodents, there is a potential patent path for air to travel from the mouth to the lungs which can be used for endotracheal intubation.

  3. Nasal congestion - Wikipedia

    en.wikipedia.org/wiki/Nasal_congestion

    Nasal obstruction characterized by insufficient airflow through the nose can be a subjective sensation or the result of objective pathology. [10] It is difficult to quantify by subjective complaints or clinical examinations alone, hence both clinicians and researchers depend both on concurrent subjective assessment and on objective measurement of the nasal airway.

  4. Choanal atresia - Wikipedia

    en.wikipedia.org/wiki/Choanal_atresia

    Choanal atresia is caused by problems with the development of the nasal cavity and the palate. Development begins with neural crest cells. Frontonasal processes fold, forming nasal placodes (nasal pits). The nasobuccal membrane must rupture in places to form the choanae. A number of theories exist as to how this developmental process causes ...

  5. Effect of oxygen on chronic obstructive pulmonary disease

    en.wikipedia.org/wiki/Effect_of_oxygen_on...

    Many people with chronic obstructive pulmonary disease have a low partial pressure of oxygen in the blood and high partial pressure of carbon dioxide.Treatment with supplemental oxygen may improve their well-being; alternatively, in some this can lead to the adverse effect of elevating the carbon dioxide content in the blood (hypercapnia) to levels that may become toxic.

  6. Advanced airway management - Wikipedia

    en.wikipedia.org/wiki/Advanced_airway_management

    As a result, infants are obligate nasal breathers until the age of 5 months. [9] Given their overall smaller airway diameter, children are more susceptible to airway obstruction from swelling. [ 9 ] Given the rapid growth throughout childhood, care must be taken to choose the proper sized airway device for every individual.

  7. Respiration (physiology) - Wikipedia

    en.wikipedia.org/wiki/Respiration_(physiology)

    The process of breathing does not fill the alveoli with atmospheric air during each inhalation (about 350 ml per breath), but the inhaled air is carefully diluted and thoroughly mixed with a large volume of gas (about 2.5 liters in adult humans) known as the functional residual capacity which remains in the lungs after each exhalation, and ...

  8. Inhalation - Wikipedia

    en.wikipedia.org/wiki/Inhalation

    Inhalation begins with the contraction of the muscles attached to the rib cage; this causes an expansion in the chest cavity. Then takes place the onset of contraction of the thoracic diaphragm , which results in expansion of the intrapleural space and an increase in negative pressure according to Boyle's law .

  9. Acute exacerbation of chronic obstructive pulmonary disease

    en.wikipedia.org/wiki/Acute_exacerbation_of...

    A history of exposure to potential causes and evaluation of symptoms may help in revealing the cause the exacerbation, which helps in choosing the best treatment. A sputum culture can specify which strain is causing a bacterial AECB. [5] An early morning sample is preferred. [7] E-nose showed the ability to smell the cause of the exacerbation. [8]