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Qu'est-ce (qui) est nucleus nervi phrenici - définition

Mesencephalic trigeminal nucleus; Mesencephalic nucleus; Nucleus mesencephalicus nervi trigemini; Mesencephalic trigeminal tract; Mesencephalic nucleus of the trigeminal nerve; Nucleus mesencephalicus

Mesencephalic nucleus of trigeminal nerve

The mesencephalic nucleus of trigeminal nerve is involved with reflex proprioception of the periodontium and of the muscles of mastication in the jaw that functions to prevent biting down hard enough to lose a tooth. To subserve this reflex protective function, mechanoreceptive nerves in the periodontal ligament sense tooth movement and project to the mesencephalic nucleus.

https://en.wikipedia.org/wiki/Mesencephalic_nucleus_of_trigeminal_nerve

Facial motor nucleus

The facial motor nucleus is a collection of neurons in the brainstem that belong to the facial nerve (cranial nerve VII). These lower motor neurons innervate the muscles of facial expression and the stapedius.

https://en.wikipedia.org/wiki/Facial_motor_nucleus

Spinal trigeminal nucleus

MEDULLAL NUCLEUS RECEIVING SKIN INFORMATION FROM THE IPSILATERAL FACE

Spinal nucleus of the trigeminal nerve; Trigeminal nucleus, spinal; Spinal nucleus; Spinal v nucleus; Spinotrigeminal nucleus; Spinal trigeminal complex; Nucleus spinalis nervi trigemini; Spinal trigeminal nuclei

The spinal trigeminal nucleus is a nucleus in the medulla that receives information about deep/crude touch, pain, and temperature from the ipsilateral face. In addition to the trigeminal nerve (CN V), the facial (CN VII), glossopharyngeal (CN IX), and vagus nerves (CN X) also convey pain information from their areas to the spinal trigeminal nucleus.

https://en.wikipedia.org/wiki/Spinal_trigeminal_nucleus

Wikipédia

Mesencephalic nucleus of trigeminal nerve

The mesencephalic nucleus of trigeminal nerve is one of the sensory nuclei of the trigeminal nerve (cranial nerve V). It is located in the brainstem. It receives proprioceptive sensory information from the muscles of mastication and other muscles of the head and neck. It is involved in processing information about the position of the jaw/teeth. It is functionally responsible for preventing excessive biting that may damage the dentition, regulating tooth pain preception, and mediating the jaw jerk reflex (by means of projecting to the motor nucleus of the trigeminal nerve).

The axons of the neuron cell bodies of this nucleus provide sensory innervation to target tissues directly, whereas other sensory nuclei of the trigeminal nerve receive their sensory imputs by synapsing with primary sensory neurons in the trigeminal ganglion.

https://en.wikipedia.org/wiki/Mesencephalic nucleus of trigeminal nerve