<em>anal</em> muscle anal muscle anal muscle a single, H-shaped cell which lies just above the anus and connects the roof of the <em>anal</em> canal to the dorsal bodywall; its contractions act to increase the size of the <em>anal</em> opening by lifting the roof of mu <em>anal</em> lineage name: ABplpppppap dilator muscle mu anal lineage name: ABplpppppap dilator muscle mu anal lineage name: ABprpppppap mu sph lineage name: ABprpppppap mu sph <em>Anal</em> depressor muscle of a male animal. <em>Anal</em> depressor muscle of a hermaphrodite animal. Neuron class of two neurons with cell bodies situated in the pre-<em>anal</em> ganglion. Neuron class of one motor neuron, process in dorsal cord, cell body in pre-<em>anal</em> ganglion. lineage name: P12.apa lineage name: P12.apa Male specific neuron, darkly staining cell body in pre- <em>anal</em> ganglion, process penetrate basement membrane Male specific neuron, darkly staining cell body in pre- <em>anal</em> ganglion, process penetrate basement membrane Male specific neuron, darkly staining cell body in pre- <em>anal</em> ganglion, process penetrate basement membrane Male specific neuron, darkly staining cell body in pre- <em>anal</em> ganglion, process penetrate basement membrane The left and right lumbar ganglia lie behind the pre-<em>anal</em> ganglion in the tail, in lateral positions. send most of their neuronal processes into the ventral nerve cord via lumbar commissures and the pre-<em>anal</em> no local neuropil in these ganglia in the hermaphrodite, instead they form most synapses in the pre-<em>anal</em> lumbar lateral ganglion lumbar lateral ganglia lumbar lateral ganglion lumbar lateral ganglia the ganglion that lies above and behind the rectum in the tail, in close continuity with the <em>anal</em> hypodermal