The Functional Organization of Motor Neurons in an Insect Ganglion

摘要: The distribution of motor nerve cell bodies in the metathoracic ganglion cockroach Periplaneta americana was mapped and displayed three dimensions. A dense ring ribonucleic acid ( RNA ) appears perinuclear cytoplasm a body whose axon has been cut peripheral trunk. Using this as primary marker, 5 maps ganglia from different animals were constructed to indicate which sends its out particular We count about 3000 neurons ganglion, these 230 are above 20 /an diameter. About 100 larger cells generally arranged bilaterally symmetrical pairs. These pairs have assigned numbers can be identified one animal another. Nerve associated with nerves 3 through 6 send their axons ipsilateral trunks. Cells 2 contralateral This study may provide basis for understanding structural metabolic organization responsible behavioural capacities certain populations neurons.