二次口蓋
WordNet
- not of major importance; "played a secondary role in world events"
- the defensive football players who line up behind the linemen
- being of second rank or importance or value; not direct or immediate; "the stone will be hauled to a secondary crusher"; "a secondary source"; "a secondary issue"; "secondary streams"
- belonging to a lower class or rank
- depending on or incidental to what is original or primary; "a secondary infection"
- the upper surface of the mouth that separates the oral and nasal cavities (同)roof of the mouth
PrepTutorEJDIC
- 『第2の』,2番目の;(…の)次の《+『to』+『名』》 / 派生的な,二次的な,あまり重要でない / 中等学校[教育]の / 二次電流の
- 口蓋(こうがい),上あご / (…に対する)味覚;好み《+『for』+『名』》
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2019/04/05 13:41:48」(JST)
[Wiki en表示]
| Secondary palate |
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A sagittal section of a pig's (Sus sp.) snout showing the secondary palate. |
| Details |
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| Identifiers |
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| Latin | Palatum secundarium,
palatum definitivum |
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| TE | E5.4.1.1.4.0.5 |
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| Anatomical terminology [edit on Wikidata] |
The secondary palate is an anatomical structure that divides the nasal cavity from the oral cavity in many vertebrates.
In human embryology, it refers to that portion of the hard palate that is formed by the growth of the two palatine shelves medially and their mutual fusion in the midline. It forms the majority of the adult palate and meets the primary palate at the incisive foramen.
Clinical significance
Secondary palate development begins in the sixth week of pregnancy and can lead to cleft palate when development goes awry.
There are three major mechanisms known to cause this failure:
- Growth retardation — Palatal shelves do not grow enough to meet each other.
- Mechanical obstruction — Improper mouth size, or abnormal anatomical structures in the embryonic mouth prevent fully grown shelves from meeting each other.
- Midline epithelial dysfunction (MED)[1] - The surface mucosa of embryonic shelves is impaired, which causes a failure of palatal fusion[dead link].
Evolution
The secondary palate is thought to have a significant role in the development of warm-blooded animals. The first creatures with secondary palates are known from the fossil record starting from the mid-Permian.
References
- ^ Dudas et al. (2007): Palatal fusion – Where do the midline cells go? A review on cleft palate, a major human birth defect. Acta Histochemica, Volume 109, Issue 1, 1 March 2007, Pages 1-14[dead link]
Development of the head and neck |
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| Face |
- Nasal placode
- Nasal pit
- Nasal prominences
- Intermaxillary segment
- Frontonasal prominence
- Maxillary prominence
- Mandibular prominence
|
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| Mouth | | Palate |
- Primary palate
- Secondary palate
|
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| Tongue |
- Lateral lingual swelling
- Median tongue bud
- Copula linguae
- Hypopharyngeal eminence
- Gustatory placode
|
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| General |
- Pharyngeal apparatus
- Pharyngeal groove
- Pharyngeal arch
- Pharyngeal pouch
|
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|
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Development of the digestive system |
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| Foregut |
- Stomodeum
- Buccopharyngeal membrane
- Rathke's pouch
- Tracheoesophageal septum
- Pancreatic bud
- Hepatic diverticulum
|
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| Midgut | |
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| Hindgut |
- Urorectal septum
- Proctodeum
- Cloaca
|
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UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- A Pediatrician's Guide to Communication Disorders Secondary to Cleft Lip/Palate.
- Kummer AW1.
- Pediatric clinics of North America.Pediatr Clin North Am.2018 Feb;65(1):31-46. doi: 10.1016/j.pcl.2017.08.019.
- PMID 29173718
- Unique association of hypochondroplasia with craniosynostosis and cleft palate in a Mexican family.
- González-Del Angel A1, Caro-Contreras A2, Alcántara-Ortigoza MA1, Ramos S3, Cruz-Alcívar R4, Moyers-Pérez P5.
- American journal of medical genetics. Part A.Am J Med Genet A.2018 Jan;176(1):161-166. doi: 10.1002/ajmg.a.38526. Epub 2017 Nov 17.
- PMID 29150894
- Dynamic Cleft Maxillary Orthopedics and Periosteoplasty.
- Lukash FN, Shikowitz-Behr LB, Schwartz M, Tuminelli F.
- Annals of plastic surgery.Ann Plast Surg.2018 Jan;80(1):40-44. doi: 10.1097/SAP.0000000000001187.
- In 1985 this cleft team, dissatisfied with the treatment and results from cleft lip and palate repair, began a longitudinal long-term study using dynamic maxillary orthopedics and periosteoplasty as was originally described by Drs Millard and Latham. All cases were carefully documented through adole
- PMID 28737562
Japanese Journal
- 義歯による口蓋の被覆がヒトの脳内味覚応答に及ぼす影響 : 7T-MRIを用いた客観的評価
- 上顎骨延長法後に術後安定性が得られた片側性唇顎口蓋裂の1例
- CTを用いた二次的顎裂部骨移植術の骨架橋評価:―予後規定因子に関する検討―
Related Links
- palate [pal´at] the roof of the mouth. The hard palate is the front portion braced by the upper jaw bones (maxillae); it has a bony framework and forms the partition between the mouth and the nose. The soft palate is the fleshy part ...
- The secondary palate is an anatomical structure that divides the nasal cavity from the oral cavity in many vertebrates. In human embryology, it refers to that portion of the hard palate that is formed by the growth of the two palatine ...
★リンクテーブル★
[★]
- 英
- secondary palate
- ラ
- palatum proprium
- 関
- 口蓋、一次口蓋、口蓋突起
[★]
- (地位・価値・重要性などが)第2の、2番目の、(～の)次の(to)。二次的な、従位の
- Postmortem examination of patients with such obstructions without a history of clinical manifestations of myocardial ischemia often shows macroscopic scars secondary to MI in regions supplied by diseased coronary arteries, with or without collateral circulation.
- in the past the commonest cause of death has been venous thrombosis followed by infection secondary to severe neutropenia and hemorrhage secondary to severe thrombocytopenia.(HIM.661)(重度の好中球減少に次ぐ感染と血小板減少に次ぐ出血に続発する静脈血栓症が昔の最も一般的な死因であった)