Final answer:
The parasympathetic innervation stimulates salivary gland secretion.
Step-by-step explanation:
The parasympathetic innervation stimulates salivary gland secretion.
Parasympathetic stimulation originates from the cardioinhibitory region with impulses traveling via the vagus nerve. The parasympathetic fibers of the facial and glossopharyngeal nerves synapse in ganglia located in the head, which control salivary glands.
Examples of other stimuli that stimulate salivation are coordinated through the hypothalamus, such as the smell and sight of food.
The hypothalamus is a small but vital part of the brain located at the base of the forebrain, just above the pituitary gland. Despite its size, the hypothalamus plays a central role in many essential functions of the body, serving as a link between the nervous system and the endocrine system.