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 (tĕg-mĕn′təm) Anatomy
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.


of or relating to the tegmentum
References in periodicals archive ?
The nucleus accumbens, ventral pallidum, and ventral tegmental areas of the basal ganglia use dopamine to signal reward.
According to research published in the journal Cerebral Cortex, gratitude stimulates the hypothalamus (a key part of the brain that regulates stress) and the ventral tegmental area (part of our "reward circuitry" that produces the sensation of pleasure).
Past work has linked drug addiction and other reward-seeking behaviors, such as sex and eating, to nerve cells, or neurons, that connect the lateral hypothalamus to the ventral tegmental area in the brain.
Tye and her team suspected that a neural pathway from the lateral hypothalamus to the ventral tegmental area might play an important role in compulsive overeating because these brain regions have been implicated in reward-related behaviors such as eating, sexual activity, and drug addiction.
In a study on rodents, investigators from the National Institute on Drug Abuse used tracers to confirm that the reward pathways started with glutamate cells in the dorsal raphe nucleus, which connect to dopamine cells in the ventral tegmental area, which eventually lead to the nucleus accumbens, a brain structure important to reward, pleasure, and motivation.
BOLD Responses Reflecting Dopaminergic Signals in the Human Ventral Tegmental Area, 319 SCI.
The mesolimbic system - primarily comprising dopamine cells in the ventral tegmental area and nucleus accumbens cells that they project to - responds to environmental stimuli, especially rewarding stimuli, to generate appropriate behaviour.
Leptochiton denhartogi Strack, 2003 has a coarser tegmental sculpture, with regularly arranged roundish granules that are completely different from those of Leptochiton sp.
Hormonal systems create the symphony of our being; the ventral tegmental area sends dopamine to other areas of the brain such as the nucleus accumbens and the prefrontal cortex.
Regulation of somatodendritic dopamine release in the ventral tegmental area by opioids and GABA: an in vivo microdialysis study.
Washington, April 11 ( ANI ): Researchers have found that the structure of the ventral tegmental area in heroin relapse patients gradually normalizes after acupuncture treatment.