12.1.4 POJA-L3570+4420+2597+3572
Title: Retina II
Description:
(A): Retina, stain Azan, human.
(1) Outer nuclear layer (stratum granulosum externum).
(2) Outer limiting membrane (membrana limitans externa).
(3a) Cone receptor cell.
(3b) Rod receptor cell.
(3c) Layer with the outer segments of the rods and cones.
(4) Pigmented epithelial cells (RPE).
(5) Lamina choriocapillaris.
(6) Choroid with vascular layer and filled veins.
(7, arrow) Bruch’s membrane.
(B): Retina, stain Haematoxylin-eosin, human.
(green 1) Outer nuclear layer.
(9) Outer plexiform layer.
(10) Inner nuclear layer. At (green *) conducting neuron i.e. bipolar ganglion cell with two axons (green arrows)
(11) Inner plexiform layer.
(C): Retina, electron micrograph, pigeon.
(1) Outer nuclear layer with nuclei from cones and rods.
(2) Outer limiting membrane.
(9) Outer plexiform layer with cone pedicles and rod spherules.
(10) Nuclei of inner nuclear layer.
(D): Retina, electron micrograph, dog.
(1) Outer nuclear layer.
(9) Cone pedicles with tangles of penetrating thin axons from association neurons such as bipolar and horizontal cells.
(12) Rod spherules with electron-dense synaptic ribbons (green arrow). The synaptic ribbon is a cytoplasmic electron-dense structure
with a halo of very small synaptic vesicles.
Background: The Ribeye protein is specific to ribbon synapses together with the large scaffold protein Bassoon.
In contrast to common synapses ribbon synapses use specialised Ca2+ channels for coupling.
In their active zones clustered Ca2+ channels activate rapidly at hyperpolarised potentials.
During ongoing stimulation the Ca2+ channels show only lenient inactivation.
Keywords/Mesh: eye, choroid, retina, rod, cone, synapse, histology, electron microscopy, POJA collection
Title: Retina II
Description:
(A): Retina, stain Azan, human.
(1) Outer nuclear layer (stratum granulosum externum).
(2) Outer limiting membrane (membrana limitans externa).
(3a) Cone receptor cell.
(3b) Rod receptor cell.
(3c) Layer with the outer segments of the rods and cones.
(4) Pigmented epithelial cells (RPE).
(5) Lamina choriocapillaris.
(6) Choroid with vascular layer and filled veins.
(7, arrow) Bruch’s membrane.
(B): Retina, stain Haematoxylin-eosin, human.
(green 1) Outer nuclear layer.
(9) Outer plexiform layer.
(10) Inner nuclear layer. At (green *) conducting neuron i.e. bipolar ganglion cell with two axons (green arrows)
(11) Inner plexiform layer.
(C): Retina, electron micrograph, pigeon.
(1) Outer nuclear layer with nuclei from cones and rods.
(2) Outer limiting membrane.
(9) Outer plexiform layer with cone pedicles and rod spherules.
(10) Nuclei of inner nuclear layer.
(D): Retina, electron micrograph, dog.
(1) Outer nuclear layer.
(9) Cone pedicles with tangles of penetrating thin axons from association neurons such as bipolar and horizontal cells.
(12) Rod spherules with electron-dense synaptic ribbons (green arrow). The synaptic ribbon is a cytoplasmic electron-dense structure
with a halo of very small synaptic vesicles.
Background: The Ribeye protein is specific to ribbon synapses together with the large scaffold protein Bassoon.
In contrast to common synapses ribbon synapses use specialised Ca2+ channels for coupling.
In their active zones clustered Ca2+ channels activate rapidly at hyperpolarised potentials.
During ongoing stimulation the Ca2+ channels show only lenient inactivation.
Keywords/Mesh: eye, choroid, retina, rod, cone, synapse, histology, electron microscopy, POJA collection