Morphology of retino-geniculate axons in the cat

doi:10.1016/0306-4522(79)90219-7

Neuroscience

Volume 4, Issue 1, January 1979, Pages 79-97

https://doi.org/10.1016/0306-4522(79)90219-7 Get rights and content

Abstract

When horseradish peroxidase is injected into the optic tract, retino-geniculate axons and their terminals become filled throughout their length and resemble axons impregnated by the Golgi methods. In the optic tract, labeled axons and collateral branches ranging from 0.5 to 5.0 μm in diameter can be traced to the dorsal lateral geniculate nucleus. Larger diameter axons branch frequently and terminate in laminae A, Al, C and in the medial interlaminar nucleus. These axons have terminal swellings that range from small (1–2μm) and spherical to large (7–l0μm) and crenulated. The swellings may be arranged in clusters, in chains connected by fine axons, or singly at the ends of axons. Fine diameter axons project to laminae Cl and C2, and intermingle with larger fibers in C and in the medial interlaminar nucleus. These fine axons branch infrequently and usually give rise to single terminals or chains of swellings, but rarely bear clusters of terminals.

The distribution of these groups of axons suggests that they may correspond to classes of retino-geniculate axons that have been characterized elect rophysiologically. The larger diameter axons show the same distribution as X- and Y-cell axons, while the finer axons appear to correspond to W-cell axons. Within each of these structural groups, however, individual axons display remarkable diversity in their overall patterns of branching as well as in the types and arrangements of their terminals.

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Morphology of retino-geniculate axons in the cat

Abstract

Brain Res.

Brain Res.

Brain Res.

Brain Res.

Brain Res.

Brain Res.

Brain Res.

Neuroscience Letters

Brain Res.

Brain Res.

Brain Res.

Technical considerations on the use of horseradish peroxidase as a neuronal marker

Neuroscience

Origins of axons in the cat's acoustic striae determined by injection of horseradish peroxidase into severed tracts

J. comp. Neurol.

Sustained and transient neurons in the cat's retina and lateral geniculate nucleus

J. Physiol. Lond.

Combined light and electron microscopic tracing of neurons, including axons and synaptic terminals, after injection of horseradish peroxidase

Neurosci. Lett.

The nerve fiber composition of the cat optic nerve

J. Anat.

Receptive field properties of cells in the cat's medial interlaminar nucleus (MIN)

The synaptic glomerulus and the intrinsic neuron in the lateral geniculate nucleus of the cat

J. comp. Neurol.

Receptive field organization of the cat optic nerve fibers with special reference to conduction velocity

Vision Res.

The projection of the lateral geniculate nucleus upon the cortex of the cat

J. Anat.

A study of Golgi preparations from the dorsal lateral geniculate nucleus of the adult cat

J. comp. Neurol.

The organization of synaptic interconnections in the laminae of the dorsal lateral geniculate nucleus of the cat

Z. Zellforsch. mikrosk. Anat.

The laminar distribution of retinal fibers in the dorsal lateral geniculate nucleus of the cat: a new interpretation

J. comp. Neurol.

A study of fine and coarse retino-fugal axons terminating in the geniculate laminae and in the medial interlaminar nucleus of the mink

J. comp. Neurol.

The cytoarchitecture of the lateral geniculate body in the cat in relation to the distribution of crossed and uncrossed fibers

J. comp. Neurol.