The septal organ of the rat during postnatal development.
The septal organ of the rat during postnatal development.
复制标题
大鼠出生后发育过程中的隔膜器官。
DOI：
10.1093/chemse/bjg047
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发表时间：
2003
期刊：
影响因子：
3.5
通讯作者：
Farbman,AlbertI
中科院分区：
文献类型：
--
作者：
Weiler,Elke;Farbman,AlbertI
马塞拉（SO）的隔器官是一个小的，孤立的补丁， 嗅觉上皮，位于鼻中隔的腹侧部分。 我们在这项系统的研究中调查了出生后的发展， 在不同年龄的大鼠组织切片中， 出生日期（P1）至P666。SO面积增加到最大值 在P66-P105，当动物达到性成熟时， 此后下降，但仅在男性中显着，表明 有限的神经再生能力而反观 主要嗅上皮面积继续扩大超过P300。 改良的呼吸道上皮（"zwischen上皮"） 分离SO和主要的嗅上皮含有一些 嗅觉神经元到P66年龄。其长度在出生后增加 因此SO变得更腹面的OE。虽然位置 SO相对于其他解剖标志的变化随发育而变化 它始终位于开口的后部， 鼻腭管（NPAL）。因此，SO的可能功能是 通过舔来感知进入口腔的液体中的化学物质， 通过NPAL递送到鼻腔;因此SO可以 参与社会/性行为，如犁鼻器 （越南）。我们认为SO是一个独立的嗅觉附属物 器官的性质与OE和VNO略有不同， 可能只存在于NPAL不开放的物种中。 VNO。
The septal organ of Masera (SO) is a small, isolated patch of olfactory epithelium, located in the ventral part of the nasal septum. We investigated in this systematic study the postnatal development of the SO in histological sections of rats at various ages from the day of birth (P1) to P666. The SO-area increases to a maximum at P66–P105, just as the animals reach sexual maturity, and decreases thereafter, significantly however only in males, indicating a limited neurogenetic capacity for regeneration. In contrast, the main olfactory epithelium area continues to expand beyond P300. The modified respiratory epithelium (‘zwischen epithelium’) separating the SO and the main olfactory epithelium contains a few olfactory neurons up to age P66. Its length increases postnatally so that the SO becomes more ventral to the OE. Although the position of the SO relative to other anatomical landmarks changes with development it is consistently located just posterior to the opening of the nasopalatine duct (NPAL). Thus, a possible function of the SO is in sensing chemicals in fluids entering the mouth by licking and then delivered to the nasal cavity via the NPAL; therefore the SO may be involved in social/sexual behavior as is the vomeronasal organ (VNO). We suggest that the SO is a separate accessory olfactory organ with properties somewhat different from both OE and VNO and may exist only in species where the NPAL does not open into the VNO.