The greater petrosal nerve branches off of the facial nerve in the skull. Along with a chain of other nerves, it innervates (provides nerve function to) the lacrimal gland, which produces tears ...

The facial nerve also helps to stimulate your oral cavity and lacrimal glands. ... the parasympathetic nuclei, ... These three parts of the facial nerve send messages throughout your glands and head.

The tear-producing lacrimal glands are innervated mainly by the parasympathetic nervous system. Increased parasympathetic activity may be responsible for reports of improved mood after crying.

This article looks at the parasympathetic nervous system, one of two majors divisions of the larger autonomic system. Health Conditions Wellness ... lacrimal glands that produce tears ; ...

Activation of the parasympathetic nervous system is also crucial for the production of tears in the lacrimal gland. Blood detoxification. During crying, tears help clear and detoxify the blood by ...

When your lacrimal gland doesn’t make enough tears, it causes dry eye. Another name for this type is keratoconjunctivitis sicca. You might have it because your eyes have aged and aren’t able ...

When I saw the reversal of dry eye disease (DED), I backed up to explore how this supplement was not only stimulating the vagus nerve (nicotinic), but also the nerves serving the lacrimal gland ...

Abstract: The lacrimal gland is essential for lubrication and protection of the eye. Disruption of lacrimal fluid production, composition, or release results in dry eye, ...