A: 3-D recontruction of the ventral brainstem at the level
of the pons. View from ventral.
Ventral surface of the pons: transparent grey surface
Boundaries of the pontine nuclei: dark blue solid surfaces
Descending fiber tracts ('peduncles'): Light blue solid
Reference frame, basis for
the coordinate system (same as in C): Solid and dotted lines
B: Photograph of the rat bainstem from ventral.
C - E: The reference frame and relative coordinates (0 - 100) for the pontine
nuclei from 3 standard angles of view. The origin of the coordinate system is
defined as the crossing of the midline and a line tangential to the rostral
end of the pontine nuclei. The thin curved lines represent the boundaries of
the pontine nuclei.
Bar 500 µm., A, anterior; D, dorsal; M, medial; R, rostral