Noradrenergic cell group A4 is a group of cells exhibiting noradrenergic fluorescence that, in the rat, are located in the
Tegmen ventriculi quarti (roof of the fourth ventricle) ventral to the
cerebellar nuclei
The cerebellum (Latin for "little brain") is a major feature of the hindbrain of all vertebrates. Although usually smaller than the cerebrum, in some animals such as the mormyrid fishes it may be as large as or even larger. In humans, the cereb ...
, and in the macaque, are found at the edge of the lateral recess of the
fourth ventricle
The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. These cavities, known collectively as the ventricular system, consist of the left and right lateral ventricles, the third ventricle, and the fourth ve ...
caudally, extending to beneath the floor of the ventricle where they merge with the noradrenergic group A6, the
locus ceruleus.
References
External links
BrainInfo
Norepinephrine
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