Równiak M, Robak A, Szteyn S, Bogus-Nowakowska K, Wasilewska B, Najdzion J
Department of Comparative Anatomy, University of Warmia and Mazuria, Olsztyn, Poland.
Folia Morphol (Warsz). 2007 Feb;66(1):44-53.
Volumetric measurements of the individual nuclei in the amygdala (CA) of the rabbit reveal poor development of the basolateral (BL) and lateral olfactory tract (NLOT) and medial (ME) nuclei. On the other hand, the volumes of the lateral (LA), basomedial (BM), central (CE) and cortical (CO) nuclei are remarkable in this species. A comparison of the densities of neurons in the individual nuclei with the mean numerical density of cells in the rabbit CA indicates that the densities of neurons in LA, BL and BM are significantly lower than the mean (p < 0.05), whereas in CE, CO, ME and NLOT these values are significantly higher than the mean (p < 0.05). It should be noted, however, that of all the nuclei studied those in CE show the greatest similarity in density to CA as a whole. To some extent a similar division of the rabbit CA may be made using the size parameters of the amygdaloid neurons as a marker. The large neurons populate less densely organised CA areas such as LA, BL and BM, whereas the small cells create ME and NLOT, where the neurons are densely arranged. The CE and CO occupy intermediate positions, with the neurons similar in size to the mean for the total rabbit CA. These morphometric data from CA in the rabbit, when compared with the similar data for the common shrew and guinea pig (see our previous papers), lead to the conclusion that the amygdalae in all three species are very similar with respect to the distribution of neurons in relation to density and size and that, when volumetric measurements are taken into account, CA in the rabbit is much more similar to that of the guinea pig than that of the common shrew.
对兔杏仁核（CA）中各个核团进行体积测量发现，基底外侧（BL）核、外侧嗅束（NLOT）核和内侧（ME）核发育不良。另一方面，该物种中外侧（LA）核、基底内侧（BM）核、中央（CE）核和皮质（CO）核的体积较大。将各个核团中神经元的密度与兔CA中细胞的平均数值密度进行比较，结果表明，LA、BL和BM核中神经元的密度显著低于平均值（p < 0.05），而在CE、CO、ME和NLOT核中，这些值显著高于平均值（p < 0.05）。然而，应该注意的是，在所有研究的核团中，CE核的密度与整个CA的密度最为相似。在某种程度上，也可以利用杏仁核神经元的大小参数作为标记对兔CA进行类似的划分。大神经元分布在组织不太密集的CA区域，如LA、BL和BM，而小细胞构成ME和NLOT，其中神经元排列密集。CE和CO占据中间位置，其神经元大小与兔整个CA的平均值相似。将兔CA的这些形态学数据与普通鼩鼱和豚鼠的类似数据（见我们之前的论文）进行比较，得出的结论是，在神经元密度和大小分布方面，这三个物种的杏仁核非常相似，并且，考虑到体积测量时，兔的CA与豚鼠的CA比与普通鼩鼱的CA更为相似。
