Convergence of visual, haltere, and prosternai inputs at neck motor neurons of Calliphora erythrocephala

N. J. Strausfeld, H. S. Seyan

Research output: Contribution to journalArticlepeer-review

109 Scopus citations


Neck muscles of Calliphora erythrocephala, situated in the anterior prothorax, are innervated on each side by 8 motor neurons arising in the brain (cervical nerve neurons, CN1-8) and at least 13 motor neurons arising in the prothoracic ganglion (anterior dorsal and frontal nerve neurons, ADN1,2 and FN1-11). Three prominent motor neurons (CN6 and FN1,2) are described in detail with special emphasis on their relationships with giant visual interneurons from the lobula plate, haltere interneurons, and primary afferents from the prosternal organs and halteres. These sensory organs detect head movement and body yaw, respectively. Neuronal relationships indicate that head movement is under multimodal sensory control that includes giant motion-sensitive neurons previously supposed to mediate the optomotor response in flying flies. The described pathways provide anatomical substrates for the control of optokinetic and yaw-incurred head movements that behavioural studies have shown must exist.

Original languageEnglish (US)
Pages (from-to)601-615
Number of pages15
JournalCell and Tissue Research
Issue number3
StatePublished - Jun 1 1985
Externally publishedYes


  • Central nervous system
  • Fly, Calliphora erythrocephala
  • Giant visual neurons
  • Head movement
  • Motor neurons

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology
  • Cell Biology


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