Developmental change in the position of the fetal human larynx
Bibliographic Data
| ID | 8312156 |
|---|---|
| Authors | Urania Magriples (0000-0002-9619-0165, City University of New York), Jeffrey T Laitman (0000-0002-9629-946X, City University of New York, corresponding author) |
| Year | 1987 |
| Volume | 72 |
| Issue | 4 |
| Pages | 463-472 |
| Publication date | 1987-04-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.1330720406 |
| PMID | 3605319 |
| OpenAlex | W1983300137 |
| Language | EN |
| Citations received | 7 |
| References cited | 15 |
The position of the mammalian larynx has been shown to be an important determinant in breathing, swallowing, and vocalizing patterns. While the growth of the adult human larynx has been studied extensively, detailed examination of fetal development has not been undertaken. Thus, crucial developmental change in the fetal period and the effects of this change on normal maturation are still unclear. This study has examined the development of the larynx and its topography during the fetal period. Thirty specimens were preserved in 10% buffered formaldehyde solution for a period of 6 weeks, after which mid‐sagittal sections were performed. Fetal ages were calculated from femur diaphyseal lengths and ranged from 15 to 29 weeks. Direct measurements were taken to determine the growth and position of the larynx and trachea relative to the vertebral column and soft palate. Results show that the upper and lower levels of the larynx correspond to the basiocciput and the lower border of the third to upper border of the fourth cervical vertebrae, respectively. The epiglottic cartilage was present at 15 weeks. By 21 weeks, the epiglottis was well developed and in close palatal apposition. At 23 to 25 weeks, the epiglottis and soft palate were found to be in full contact. The acquisition of this contact may be related to fetal respiratory viability
Biology · Epiglottis · Femur · Fetus · Larynx · Pregnancy · Sagittal plane · Swallowing · Anatomy · Cleft Lip and Palate Research · Head and Neck Anomalies · Medicine · Surgery · Tracheal and airway disorders
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Kto pierwszy przemówił? Uwarunkowania morfologiczne mowy ludzkiej
| Unique citing works | 7 |
|---|---|
| Citations per year | 0,19 |
| Citation span | 1990 - 2003 (14) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 5 |