Estavillo J A
Acta Anat (Basel). 1978;101(2):104-9. doi: 10.1159/000144955.
The middle cardiac nerve, a branch of the vagus, innervates the ventricles of the avian heart. Of 533 myelinated sensory fibers, the size range was 2 micron. The ratio of myelinated to unmyelinated sensory fibers ranged from 2.17 to 3.48. Sensory endings resembled a network pattern with no distinct receptor-like endings. Frequency of nerve population increased from apex to base of the heart.
心中神经是迷走神经的一个分支，支配鸟类心脏的心室。在533条有髓感觉纤维中，大小范围为2微米。有髓与无髓感觉纤维的比例在2.17至3.48之间。感觉末梢类似网络模式，没有明显的类似感受器的末梢。神经分布频率从心脏尖部向基部增加。
