Final answer:
The Facial nerve VII carries parasympathetic fibers to the lacrimal gland for tear production and to the submandibular and sublingual salivary glands.
Step-by-step explanation:
The Facial nerve VII carries parasympathetic fibers to several structures, including the lacrimal gland which is responsible for tear production, and the salivary glands, specifically, the submandibular and sublingual glands. Parasympathetic fibers of Facial nerve VII synapse in the pterygopalatine ganglion, which then projects to these glands to regulate functions such as salivation and tear production. However, it does not innervate the heart or lungs; those areas are primarily influenced by the vagus nerve (cranial nerve X).Parasympathetic fibers in the facial nerve activate a ganglion, which ultimately stimulates tear production in the lacrimal gland. Additionally, the facial nerve projects parasympathetic fibers to ganglia that control salivary glands, resulting in saliva production.