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Fig. 6 | Frontiers in Zoology

Fig. 6

From: Neurons of self-defence: neuronal innervation of the exocrine defence glands in stick insects

Fig. 6

Innervation of the defence gland by different nerves in C. morosus (a, b) and S. sipylus (cf). In C. morosus, tracing of N. anterior SOG reveals the innervation of the defence gland and also adjacent muscles. Also visible is the nerve branch from the N. posterior SOG/ N. anterior T1 which is not stained (empty arrow). b Tracing of N. transversus does not result in staining of nerve fibres on the gland but of a small muscle (asterisk) next to the gland by a thin nerve branch (black arrow). The nerve branch from N. transversus to the gland is not stained (empty arrow). Scale bars: 500 μm. In S. sipylus, the gland innervation shown by neuronal branches on the gland surface from several nerves: c the N. anterior SOG, d the N. anterior SOG via the prothoracic-suboesophageal connective, e the N. posterior SOG, and d the N. anterior T1. In all preparations neurobiotin solution was used as tracer. Scale bars: 500 μm

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