two methods were used to determine which ending types arise from second-order auditory neurons in nucleus magnocellularis ( nm ) : 1 ) degeneration of axonal endings in nl after transection of the crossed dorsal cochlear tract ( ctrx ) carrying the axons of each nm to the contralateral nl , and 2 ) injection of horseradish peroxidase ( hrp ) into nm or the ctrx to label endings in nl by anterograde transport .
C0027882
neurons
C0004461
axons