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lamella of the cornea, this muscle is separated from the spaces of 
Fontana by a pigmented fascia-layer. About halfway this nasal- 
inferior quadrant this pigmentation is interrupted, and is sharply 
demarcated from the rest by a pigmented curved line. 
When the basement membrane is stretched opposite to this region, 
a break will be seen in the connecting line between basement 
membrane and muse. ciliares, formed by the insertion of the tensor 
chorioideae. The basement membrane bridges the non-pigmented 
part of the ciliary muscles. (See Fig. 2). 
horizontaal 
grondplaat Yh corp. ciliare 
Overbrugging 
Pigmentvrij deel 
nasaal cerebraal 
lig. pectinatum 
Spier v{ = cornea 
Fig.2. 
Horizontal 
grondpl. etc. = basement membr. of the corp ciliare 
Overbrugging = Bridging 
Pigmentvrij deel = Non-pigmented part. 
nasaal = nasal 
cerebraal — cerebral 
Spier van — Muscle of 
onder = Inferior 
As is shown in a reconstruction of the sections the form of a 
non-pigmented spot of the corpus ciliare corresponds with the form 
of the muscular fascicle. Moreover, the peculair bridging effected by 
the basement membrane seems to be related to the modified insertion 
of the M. tensor chorioideae. In Fig. 1 the absence of pigment on 
the muscular fascicle is also noticeable. 
Between the horizontal plane and the part of the corp. ciliare 
that displays the details alluded to, the ciliary muscles present a 
regular structure. 
From the sclera arise two muscles: Crampron’s muscle towards 
the interior lamella of the cornea and Bricke’s muscle as a peripheral 
part of the tensor chorioideae to the basement membrane of the 
corp. ciliare. The other part of the tensor chorioideae, Mürrer’s 
muscle, extends between the inner cornea-lamella and the basement 
