Extra Pyramidal Tract (Basic Outline Concept)

Here is a basic outline of Extra Pyramidal Tract.

1. Rub
rosp
inal
Trac
t
•From Red Nucleus of Mid Brain.
•Cross to opposite side in the
Tegmentum of Mid Brain
constituting the Ventral Tegmentum
Decussation in Mid Brain.
•Fibres descends through Pons &
Medulla.
•Enters the lateral white column of
spinal cord.
Medi
al
Retic
ulos
pinal
Tract
•From Reticular formation in Pons.
•Uncrossed.
•Fibres descends to Cervical segment
only.
•Enters the Anterior White column of
spinal cord.
Later
al
Retic
ulos
pinal
Tract
•From Reticular formation of Brain
Stem.
•Has both crossed and uncrossed
fibres.
•Fibres Descends to Thoracic
segment.
•Enters the Anterolateral White
column of spinal cord.
Oliv
ospi
nal
Trac
t
•From the Inferior Olivary
nucleus of Medulla Oblongata.
•Enters the Anterolateral White
Column of spinal cord.
Vesti
bulos
pinal
Tract
•From Lateral Vestibular Nucleus
of Ponto-Medullary junction.
•Uncrossed.
•Enters the Anterior White
Column of spinal cord.
Tect
ospi
nal
Trac
t
•From Tectum of Superior Colliculus
of Mid Brain.
•Fibres cross to opposite side
forming Dorsal Tegmental
Decussation in the Mid Brain.
•Enters the Anterior White column of
spinal cord.