Experimental demonstration of tongue muscle origin in chick embryos.
Experimental demonstration of tongue muscle origin in chick embryos.
复制标题
鸡胚舌肌起源的实验证明。
DOI：
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发表时间：
1958
期刊：
影响因子：
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通讯作者：
E. Deuchar
中科院分区：
文献类型：
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作者：
E. Deuchar
由于在所有脊椎动物中，舌肌都由枕区的节段性神经XII支配，因此通常仅根据这一标准就认为它们起源于枕肌肌组织。然而，支持这一概括的描述性证据远远不够。现存的最完整的记载指的是一种两栖动物和两种爬行动物。在两栖类中，Platt(1897)观察到第三和第四枕骨肌肉的腹侧突起成为舌肌，Edgeworth(1935)描述了爬行动物Shenodon和Lacerta的舌肌从两个枕骨和两个颈部肌肉的腹侧部分发育而来，都由XII神经支配。然而，在鸟类和哺乳动物的胚胎中，早期肌肉的雏形在组织学上是很难确定的。
Since in all classes of vertebrates the tongue muscles are innervated by nerve XII, a segmental nerve of the occipital region, it is usually argued on this criterion alone that they originate from occipital myotome tissue. Descriptive evidence in support of this generalization is, however, far from adequate. The most complete accounts that exist refer to one amphibian and two reptile species. In the amphibian Necturus , Platt (1897) observed that ventral outgrowths of the 3rd and 4th occipital myotomes became tongue muscles, and Edgeworth (1935) has described the development of tongue muscles in the reptiles Sphenodon and Lacerta , from ventral parts of two occipital and two cervical myotomes, all innervated by nerve XII. In avian and mammalian embryos, however, early muscle rudiments are extremely difficult to recognize with any certainty histologically.