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Fig. 10 | Frontiers in Zoology

Fig. 10

From: The complex simplicity of the brittle star nervous system

Fig. 10

The hyponeural neuroepithelium makes direct contacts with the ectoneural epithelium (a and a’) and with the intervertebral muscles (b and b’) in A. kochii. Transmission electron microscopy. The colorized neuron in a and a’ has its cell body within the hyponeural neuroepithelium and sends a process into the ectoneural neuropithelium. a’ and b’ show detail views of the boxed areas in a and b, respectively. Abbreviations: en – ectoneural neuroepithelium; hn – hyponeural neuroepithelium; n – neuron; np – neural processes; om – oral intervertebral muscle. White arrowheads indicate the basal lamina

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