Home | | Human Neuroanatomy(Fundamental and Clinical) | Special Visceral Efferent Nuclei - Cranial Nerve Nuclei

Chapter: Human Neuroanatomy(Fundamental and Clinical): Cranial Nerve Nuclei

| Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail |

Special Visceral Efferent Nuclei - Cranial Nerve Nuclei

These nuclei are also called branchial efferent or branchiomotor nuclei. They supply striated (skeletal) muscle derived from branchial arches.

Special Visceral Efferent Nuclei

        These nuclei are also called branchial efferent or branchiomotor nuclei. They supply striated (skeletal) muscle derived from branchial arches.

1.              Themotor nucleus of the trigeminalnerve lies in the upper part of the pons, in itsdorsal part (Figs. 10.1, 10.2, and 10.3D). It is situated in the lateral part of the reticular formation, medial to the main sensory nucleus of the trigeminal nerve .

2.              Thenucleus of thefacial nerve lies in thelower part of the pons and occupies a position similar to that of the motor nucleus of the trigeminal nerve. The spinal nucleus and tract of the trigeminal nerve lie lateral to it. (Figs. 10.1, 10.2 and 10.3C).

3.              Thenucleus am-biguus lies in the medulla. It forms an elongated column lying deep in the reticular formation, both in the open and closed parts of the medulla (Figs. 10.1, 10.2 and 10.3A, B). Inferiorly, it is continuous with the spinal accessory nucleus. It is a composite nucleus and contributes fibres to the glossopharyngeal, vagus and accessory nerves.





Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail


Copyright © 2018-2020 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.