tegmentum


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Related to tegmentum: tegmentum of midbrain

teg·men·tum

 (tĕg-mĕn′təm) Anatomy
n.
1. A covering or integument of an organ or body part.
2. The ventral part of the midbrain.

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

teg·men′tal (-təl) adj.

tegmentum

(tɛɡˈmɛntʌm)
n
one of the hard protective sometimes hairy or resinous specialized leaves surrounding the buds of certain plantsa part of the brainstem that covers the floor of the midbrain
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The presence of sebaceous glands in the dermis at the level of the tegmentum is generally common in mammals (e.
This revealed two regions linked to the rostral dorsolateral pontine tegmentum - one that was located in the left ventral anterior insula, and the other located in the pregenual anterior cingulate cortex.
With this in mind, the team examined a specific region called the rostral dorsolateral pontine tegmentum.
The emotional pathway, which coordinates the motor aspect of reflex laughing or crying, originates at the frontotemporal cortex, relaying to the amygdala and hypothalamus, then projecting to the dorsal brainstem, which includes the midbrain-pontine periaqueductal gray (PAG), dorsal tegmentum, and related brainstem.
Midbrain comprises of tectum and tegmentum while the hindbrain composed of cerebellum, pons and medulla.
The patient was not diagnosed PSP due to the absence of atrophy of midbrain tegmentum, superior colliculi, and pons.
Table 1 Patterns of Atrophy Frontal-1 Parietal-2 Temporal-3 Occipital-4 Diffuse cerebral-5 Cerebellar hemispheres-6 Cerebellar a-superior b-middle c-inferior peduncles-7 Midbrain-8 a-substantia nigra b-tegmentum Pons-9 No atrophy-10 Table 2 Signal Changes Basal ganglia-1 a-caudate, b-putamen, c- globus pallidus Thalamus-2 Midbrain-3 a-substantia nigra b- tegmentum Pons-4 Cerebellar peduncles-5 a-superior b-middle c- inferior Cerebellum-6 Cerebral white matter-7 Periventricular signal changes-8 A-Hyperintensity B-Hypointensity Table 3 Age Frequency % 19-28 years 8 16 29-38 3 6 39-48 3 6 49-58 11 22 59-68 10 20 69-78 11 22 79-88 4 8 Grand Total 50 100
Regional cerebral blood flow in fibromyalgia: single-photon-emission computed tomography evidence of reduction in the pontine tegmentum and thalami.
The presence of TFF3 peptide in porcine [25] and human [22] oxytocinergic neurons suggests their role as a neurotransmitter/modulator in various brain regions innervated by these neurons, like brain stem, spinal cord and pontine tegmentum [2], or as a neurohormone released into bloodstream and affecting potential target cells.
Tegmentum coarsely sculptured, with rather irregular, roundish and obliquely elevated granules, arranged in longitudinal series, obliquely directed in antemucronal area, radially in postmucronal area.
In the Braak system, stages 1 and 2 in Lewy body pathology involve the medulla oblongata, the pontine tegmentum in the pons, the olfactory bulb, and the anterior olfactory nucleus adjacent to the bulb (Braak et al, 2004).
Cholinergic neurons in the basal forebrain and brain stem pedunculopontine tegmentum (PPT) areas project and diffusely innervate the entire neocortex, amygdala, hippocampus, thalamus, and the midbrain (1).