Dentate gyrus
The dentate gyrus (DG) is part of the hippocampal formation in the temporal lobe of the brain, which also includes the hippocampus and the subiculum. The dentate gyrus is part of the hippocampal trisynaptic circuit and is thought to contribute to the formation of new episodic memories, the spontaneous exploration of novel environments and other functions.
| Dentate gyrus | |
|---|---|
Diagram of hippocampal regions. DG: Dentate gyrus. | |
Coronal section of brain immediately in front of pons. (Label for "Gyrus dentatus" is at bottom center.) | |
| Details | |
| Part of | Temporal lobe |
| Artery | Posterior cerebral Anterior choroidal |
| Identifiers | |
| Latin | gyrus dentatus |
| MeSH | D018891 |
| NeuroNames | 179 |
| NeuroLex ID | birnlex_1178 |
| TA98 | A14.1.09.237 A14.1.09.339 |
| TA2 | 5521 |
| FMA | 61922 |
| Anatomical terms of neuroanatomy | |
It is notable as being one of a select few brain structures which may have significant rates of adult neurogenesis in many species of mammals, from rodents to primates. Other sites of adult neurogenesis may include the subventricular zone, the striatum and the cerebellum. However, whether significant neurogenesis exists in the adult human dentate gyrus has been a matter of debate.
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