The superior salivatory nucleus receives afferent information from the hypothalamus and olfactory system as well as taste information from the mouth cavity. It supplies the sublingual salivary glands and the nasal and palatine glands.
Where is superior salivary nucleus?
pons
The superior salivatory nucleus is located just cranial to the inferior salivatory nucleus within the dorsal aspect of the pons just superior to the pontomedullary junction. It lies superior and dorsal to the nucleus ambiguus and medial to both the solitary tract nucleus and spinal nucleus of the trigeminal nerve.
What does the inferior salivatory nucleus do?
The inferior salivatory nucleus gives rise to general visceral efferent fibers that provide input for parotid gland secretion. The afferent limb for autonomic reflexive control of respiration and cardiac output is provided by general visceral afferent fibers of the glossopharyngeal nerve.
What does nucleus ambiguus do?
The nucleus ambiguus is the location of cell bodies of motor nerves that innervate the ipsilateral muscles of the soft palate, pharynx, larynx and upper esophagus and are mainly responsible for swallowing and speaking.
What nerve controls salivation?
The parotid mainly produces watery, or serous saliva. It’s duct opens in the mouth just opposite the crown of the 2nd upper molar tooth. The gland’s productions are predominantly controlled by a nerve called the glossopharyngeal nerve which originates in the superior salivatory nucleus of the medulla in the brainstem.
What organs receive fibers from ciliary ganglion?
Nerve fibers leave the brain and enter the ganglia. These fibers synapse (a junction between nerves where they communicate) with neurons going to the eye. Nerves from the ciliary ganglion innervate the muscles that constrict the pupil, a hole in the iris that lets light enter the eye.
What does nucleus Ambiguus do?
What does the glossopharyngeal nerve control?
There are a number of functions of the glossopharyngeal nerve. It controls muscles in the oral cavity and upper throat, as well as part of the sense of taste and the production of saliva. Along with taste, the glossopharyngeal nerve relays general sensations from the pharyngeal walls.
Does the vagus nerve control salivation?
Vagal afferent stimulation significantly increased salivation and swallowing-like events in a frequency-dependent manner.
