Vol 63, No 3 (2004)
Original article
Published online: 2004-06-04
Anatomical and histological data on the ciliary ganglion in the Egyptian spiny mouse (Acomys cahirinus Desmarest)
Folia Morphol 2004;63(3):267-272.
Abstract
The morphology and topography of the ciliary ganglion in the Egyptian spiny
mouse were studied with use of histochemical and histological techniques. The
ciliary ganglion of the Egyptian spiny mouse consisted of between 3 and 4 agglomerations
of nerve cells. The largest was situated at the point where the
ventral branch of the oculomotor nerve divides into two branches. The next two
smaller aggregations were located on the superior and lateral surfaces of the
optic nerve where it crossed the oculomotor nerve. From the main agglomerations
of neurocytes arose between 3 and 4 intensively stained postganglionic
cholinergic fibres. These followed the optic nerve to the eyeball. On the crosssections
of these bundles small agglomerations of neurocytes were observed.
These decreased in size to only 2 or 3 cells towards the sclera. The ganglionic
neurocytes in the largest ganglion varied from 15 to 30 µm in diameter. They
were distributed uniformly over the whole surface of the sections. All the ganglia
had connective capsules.
Keywords: ciliary ganglionEgyptian spiny mouse