Catecholamine-containing cells and their processes in an early pluteus larva of Mesocentrotus nudus (Echinodermata, Strongylocentrotidae), 48 hours post fertilization. Annotated Image

 

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Authors: A.L. Obukhova

Color Channels:

Blue — catecholaminergic nervous elements

Notation:

arm - arm,
m – mouth.
Arrows indicate cell bodies.

Image
description

Three symmetrical cells at the base of each arm and solitary cells along the ventral arm surface are visible. Cell processes run along the arm ciliary bands. Faintly stained neurons are located around the mouth.