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Additional
tegmentum
English Wikipedia - The Free Encyclopedia
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Tegmentum
The
tegmentum
(from
Latin
for "covering") is a general area within the
brainstem
. It is located between the
ventricular system
and distinctive
basal
or
ventral
structures at each level. It forms the floor of the
midbrain
(
mesencephalon
) whereas the
tectum
forms the ceiling. It is a multisynaptic network of
neurons
that is involved in many unconscious
homeostatic
and
reflexive
pathways. The tegmentum area includes various different structures, such as the "rostral (=frontal/cranial/oral) end of the
reticular formation
, several nuclei controlling eye movements, the
periaqueductal gray
matter, the
red nucleus
, the
substantia nigra
, and the
ventral tegmental area
."
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