Figure 6
From: Internal receptors in insect appendages project directly into a special brain neuropile
Tibial neurons as seen after staining nerves with nickel chloride. A Proximal tibial region of a hind leg showing the split of nerve 5B2 (N5B2) into its anterior (ant) and posterior (post) branches, the sensory branches (a-c), and the motor nerve to the retractor unguis muscle (ru-mn). In this example the neuron is located within the motor nerve (see inset). B and C show two other examples where the neuron is associated with the common root of nerves a-c B or connected to the main nerve (N5B2) by a short connection C. d=distal, p=proximal, ru-t=tendon of retractor unguis. Scales: 50 μm in A, 20 μm in B and C.