Nucleus salivatorius inferior
The inferior salivator nucleus is a pair of cranial nerve nuclei of the ninth cranial nerve, the glossopharyngeal nerve , in the brain stem . It is general visceromotor and supplies the parotid gland parasympathetically .
location
The core area lies in the upper section of the medulla oblongata between two other core areas of the cranial nerve. The upper part of the specially viscerosensitive and general viscerosensitive nucleus tractus solitarii lies laterally, and the upper part of the specially visceroefferent nucleus ambiguus is located ventrally .
Its efferent fibers leave the core area between the two aforementioned core areas and emerge from the brain stem with the other parts of the glossopharyngeal nerve in a sulcus behind the olive . The nucleus also has a proximity to the Fasciculus longitudinalis dorsalis (also called Schütz bundle), which lies dorsally against it.
function
Only the first neurons for the parasympathetic innervation of the parotid gland are located in the inferior salivary nucleus . They are controlled by the hypothalamus via the previously mentioned fasciculus longitudinalis dorsalis . The fibers leaving the nucleus reach the otic ganglion , where they are switched to a second neuron, the axons of which reach the parotid gland.
swell
- Martin Trepel: Neuroanatomy . Elsevier, Munich 2012. ISBN 978-3-437-41299-8
- Werner Kahle, Michael Frotscher: Pocket Atlas Anatomy Vol. 3: Nervous system and sensory organs . Thieme, Stuttgart 2009. ISBN 978-3-13-492210-3