Figure 6

[ 3 H] ketanserin binding sites on coronal sections of premammillary hypothalamus from 2 representative ewes. A and C: total binding and B and D: remaining binding after incubation with 10-6M methysergide. A and B are sections from a ewe exhibiting high LH pulsatility whereas C and D are from a ewe exhibiting low LH pulsatility. Bar = 2mm. FMT, mammillothalamic tract; FX, fornix. Third ventricule (V3).