Fig. 8.
Toxic changes in neurons and muscles in adeg-1(u38) larva. A, A membrane whorl and vacuole were found in a PHA dendrite in the phasmidial nerve. Similar whorls and vacuoles were found along the length of bothPHA dendrites in this animal, but not in two other animals scored in serial thin sections. B, A membrane whorl is located at the boundary of the anal depressor muscle (AD) and a ventral body wall muscle (vm).C, Involution of the plasma membrane (curved arrow) in the anal depressor muscle (AD) has caused the insertion of membrane into the muscle cell nucleus (labeled with the cell name). The thin arrow indicates a smaller membrane whorl at the junction of the depressor muscle and a dorsal body wall muscle (dm).