Sunday 24 February 2019

Cranial Projection and Association Tracts and Limbic System





INTERNAL CAPSULE
• A compact band of
neocortical projection fibres
• Main highway for input &
output fibres of cerebral cx...


Image result for white matter association fibres


Bundles implies long association fibres

No photo description available.

Image result for commissural fibresImage result for anterior commissure




Corpus callosum fibres

Image result for tapetum corpus callosum


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Image result for lenticular fasciculus
VA- ventral anterior
VL - ventral lateral

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NB Lentiform nucleus = GP + putamen

Tegmentum (Lat- Covering). Forms floor of midbrain cf.
Tectum (Lat- Roof). Forms roof of midbrain.
Stria (Lat- Stripe)
    Fasciculus (Lat- Bundle)
    Tapetum (Lat- Tapestry/rug)
    Habenula (Lat- reins). Denotes stalk of pineal gland and neighbouring neurons.




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Resembles a tapestry; the carpet of the brain. Primarily formed by decussating fibres of the splenium.

Septal nuclei are by septum pellucidum. Role in pleaseure/reward like Nucleus Accumbus.


Limbic System- a ring of memory and emotion (like a wedding ring).



Image result for limbic system diagram sagittal



Simplified:

Image result for limbic system diagram sagittal

Image result for papez circuit

Deontes a conerstone of memory processing/consolidation





Indusium (tunic/shirt) griseum is membranous layer of grey matter which covers the corpus callosum.




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