Posterior nucleus of hypothalamus
From Wikipedia, the free encyclopedia
The posterior nucleus of the hypothalamus is one of the many nuclei that make up the hypothalamic region of the brain.
| Posterior hypothalamic nucleus | |
|---|---|
 Posterior nucleus is 'PN', at right, in red. | |
| Details | |
| Part of | Hypothalamus |
| Identifiers | |
| Latin | nucleus posterior hypothalami |
| NeuroNames | 420 |
| NeuroLex ID | birnlex_1463 |
| TA98 | A14.1.08.939 |
| TA2 | 5738 |
| FMA | 62350 |
| Anatomical terms of neuroanatomy | |
Its functions include elevation of blood pressure, pupillary dilation, and shivering or body heat conservation (thermoregulation).[1] Damage or destruction of this nucleus causes hypothermia. Descending efferents from the nucleus synapse on the sympathetic neurons of the spinal cord, which exist in the thoracic and lumbar regions in the lateral horns. A recent study showed that a subset of neurons in this brain area are involved in the generation of panic-like defensive state in mice.[2]
