The Membrana Limitans Interna is
the first (1st) of the layers forming the retina of
the human eye that light reaches after entering the eye - through
the cornea,
aqueous
humour, pupil, lens,
etc.. The retina is composed of several layers which, together, form
the "screen" in the eye onto which an image of the area
viewed by the eye is formed, and information about that image is
segmented into packets of information that are passed to the
visual cortex of the brain via the optic
nerve.
The membrana limitans interna is the retinal layer
located nearest to the centre of the eyeball (and at the bottom left-hand
side of the upper-diagram to the right).
It is in contact with the
hyaloid
membrane of the vitreous
humour of the eye.
In common with the Membrana
Limitans Externa, the membrana limitans interna is
formed from the Fibres of Müller.
These fibres
of Müller (also known as "radiating fibres")
form the supporting framework that connects the layers of the retina
together and also forms the Membrana Limitans Interna and the Membrana
Limitans Externa.
These layers are so named because they form the two limits between
which the fibres of Müller are attached. As the fibres of Müller are stretched
between these two "limiting layers", they therefore pass through
all of the layers in between - which includes all of the "nervous layers" except Jacob's
Membrane (layer 9).
For more information about related subjects see:
*_ Structure & Components
of the Eye,
*_ Components
of the Central Nervous System,
*_ The
Pathway of a
Nerve Impulse,
*_ Structures
and Functions
of Neurones,
*_ Diseases
and
Disorders of the Nervous System,
*_ Text
books about Ophthalmology. |
