While the t-test is used to compare the means between two groups, ANOVA is used to compare means between 3 or more groups. There are several varieties of ANOVA, such as one-factor (or one-way) ANOVA, two-factor (or two-way) ANOVA, and so on, and also repeated measures ANOVA.
If you recall, CN VII is responsible for taste sensation in the anterior two-thirds of the tongue. Well, it's the glossopharyngeal nerve, also known as cranial nerve IX, that is the nerve responsible for the sensation of taste in the posterior one-third of the tongue. In addition, cranial nerve IX is a nerve that innervates one of the three major salivary glands, called the parotid gland.
Special Sensory Functions. The chorda tympani branch of the facial nerve is responsible for the taste innervation of the anterior 2/3 of the tongue. The nerve arises in the facial canal, and travels across the bones of the middle ear, exiting via the petrotympanic fissure, and entering the infratemporal fossa.Here, the chorda tympani âhitchhikesâ with the lingual nerve.he other symptoms produced depend on the location of the lesion, and the branches that are affected: 1  Chorda tympani â reduced salivation and loss of taste on the ipsilateral 2/3 of the tongue. 2  Nerve to stapedius â ipsilateral hyperacusis (hypersensitive to sound).