Final answer:
Among the options, 'Zona pellucida' is the abnormal finding in the palate, as it's related to an egg cell, not palatal anatomy.
Step-by-step explanation:
The abnormal finding in the palate listed among the options is d. Zona pellucida. A Zona pellucida is actually a term used in reference to a structure surrounding an oocyte (egg cell), and it's not normally found in the anatomy of the palate. The rest of the listed options are normal anatomical structures within the palate: a. Torus palatinus is a benign bony growth on the palate, b. Median palatine raphe is the line of fusion of the palatine processes, c. Velar dimple may refer to a normal indentation on the soft palate, and e. Palatal rugae are the ridges on the hard palate. Abnormal conditions of the palate include issues like cleft palate, which is a result of incomplete fusion of the palatine processes during embryonic development and can lead to communication between the oral and nasal cavities.