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tegmentum

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
teg·men·tum  (tg-mntm)
n.
1. See tegmen.
2. A part of the midbrain consisting of white fibers running lengthwise through gray matter.

[Latin tegumentum, tegmentum, covering, from tegere, to cover; see (s)teg- in Indo-European roots.]

teg·mental (-tl) adj.


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Their findings suggest that a small group of neurons near the base of the brain, in the mesopontine tegmentum, has executive control over the alert status of the entire cerebrum and spinal cord, and can generate loss of pain sensation, postural collapse, and loss of consciousness through specific neural circuitry.
The ventral nuclei of the thalamus, cerebral cortex, oriens layer of the hippocampus, and raphe and tegmentum nuclei of the brain stem were strongly stained.
Topics on the spinal cord and hindbrain include the segmental organization of the head, brain and cranial nerves, the reticular formation, and the cerebellum, with examinations of the motor and sensory nerves of the cranial brainstorm, those describing the midbrain include descriptions of the tegmentum, tori and optic tectum.
 
 
 
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