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Fig. 4.
Transverse sections from level A to level J of the brain and pituitary gland of X. laevis, presenting UCN1-immunoreactive cell bodies and fibers. (a) Medial septum. Inset: varicose fiber. (b) Amygdala pars lateralis. Inset: varicose fiber. (c) Ventral part of the magnocellular nucleus with arrowhead indicating dendrite contacting the CSF. (d) Medial part of the magnocellular nucleus. (e) Fiber tract running from the magnocellular nucleus to the median eminence. (f) Median eminence, with internal (i) and external (e) zone. (g) UCN1-positive fibers (arrowheads) running in the internal zone of the median eminence on their way to the neural lobe. (h) Neural lobe of the pituitary gland (N) with neurohemal axon terminals, shown in detail in inset. D, distal lobe. In a, b, and c, dorsal is not on top and orientation of dorsal (d)–lateral (l) has been indicated. Scale bar a–e, g = 20 μm, f = 50 μm, h = 10 μm.
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