Fig. 4.

Renshaw cells in the third thoracic cord. A,B: Two examples of Renshaw cells. Aa, Ba: Recordings obtained from the fourth cervical and third thoracic ventral root (C4, T3) and the membrane potential of the Renshaw-like cell (MP). Ab, Bb: Fluorescence images. The recorded neuron was stained by Lucifer yellow (green). Ac, Bc: Higher magnifications of the highlighted square in panels Ab and Bb. Ad, Ae, Bd, Be: Bright-field images of the same areas as Ab, Ac, Bb, and Bc, respectively. The GAD 65/67-positive cells were stained with black. White and black arrows indicate the recorded neuron. Af, Bf: Membrane potential evoked by electrical stimulation to the T3 ventral root. Five trials were overlapped.