Location of motoneurons innervating the middle ear muscle of the chicken, (Gallus domesticus).
The motoneuron pool for the musculus columellae, the avian equivalent to the m. stapedius, was identified by retrograde labeling with WGA-HRP. It consists of a discrete group of approximately 65 neurons located along the dorsolateral border in the ventral subnucleus of the facial nuclear complex. Other facial motoneurons were only labeled when diffusion of the tracer into neighbor structures was not excluded. The dorsal subnucleus of the facial nerve innervates the m. depressor mandibulae.
Wong
C J
CJ
Rotary Hearing Centre, University of British Columbia, Vancouver, Canada.
To
E C
EC
Schwarz
D W
DW
D000818:Animals; D002645:Chickens; D004432:Ear, Middle / Q000294:innervation*; D006735:Horseradish Peroxidase; D009046:Motor Neurons / Q000166:cytology*; D009132:Muscles / Q000294:innervation; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins
D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins; D006735:Horseradish Peroxidase