| Postnatal descent of the epiglottis in man. A preliminary report. | |
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MedLine Citation:
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PMID: 836246 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The function of the epiglottis in adult man is unclear. However, during early infancy the epiglottic cartilage appears to play an important role in separating the upper respiratory tract from the upper digestive tract. This separation is accomplished by approximation of the epiglottis to the palate, providing a continuous airway from the nose through the larynx into the trachea. This structural arrangement, however, is uniquely lost in man during postnatal development. Maturational descent of the epiglottis, found to occur between 4 and 6 months of age, is verified by cineradiography. This structural change, requiring a reorganization of respiratory function, represents a discrete developmental event manifesting the potential for oral tidal respiration from a pattern of obligate nasal breathing. This period, four to six months postnatally, interestingly coincides with the peak incidence of sudden infant death syndrome (crib death), which similarly occurs at 3 to 5 months of age. |
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Authors:
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C T Sasaki; P A Levine; J T Laitman; E S Crelin |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Archives of otolaryngology (Chicago, Ill. : 1960) Volume: 103 ISSN: 0003-9977 ISO Abbreviation: Arch Otolaryngol Publication Date: 1977 Mar |
Date Detail:
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Created Date: 1977-03-31 Completed Date: 1977-03-31 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0376526 Medline TA: Arch Otolaryngol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 169-71 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aging* Epiglottis / anatomy & histology*, physiology Humans Infant Infant, Newborn Mouth Breathing Palate / anatomy & histology Respiration |
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