mixed group of SBs consisting of
plate-like, spherical and irregular SBs
(pinealocyte of a guinea-pig kept
under normal light conditions, i.e. 12 h
light - 12 h darkness, light on at 6.00 am) |
"paired ribbon field" = group of SBs opposite
to each other on the cell membranes of 2
adjacent pinealocytes. Note the shield-like
stucture of the SBs (guinea-pig kept under
constant illumination for 4 months) |
greater, lump-like, bizarre SBs
facing each other and being attached
to the plasmalemma of 2 neighbouring
pinealocytes (guinea-pig kept under
constant illumination for 4 months) |