What function is associated with the inferior salivatory nucleus?

The inferior salivatory nucleus is specifically associated with the stimulation of salivation, particularly from the parotid glands. This nucleus is part of the autonomic nervous system, contributing to the parasympathetic outflow. It gives rise to preganglionic autonomic fibers that travel through the glossopharyngeal nerve (cranial nerve IX) and eventually synapse in the otic ganglion. From the otic ganglion, postganglionic fibers innervate the parotid gland, thereby facilitating saliva secretion.

The other options pertain to different functions. Swallowing and vocal cord control, for example, are primarily associated with the nucleus ambiguus and other regions involved in the motor control of the larynx and pharynx, while tear production is linked to the superior salivatory nucleus and the lacrimal glands. Movement of the tongue relates more to the hypoglossal nucleus and its control over the muscles of the tongue. Thus, salivation from the parotid glands accurately reflects the specific role of the inferior salivatory nucleus.