A freshwater crocodile at Basel Zoo in Switzerland In animal anatomy, the<unk> , also known as the oral cavity, buccal cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on the outside by the lips and inside by the pharynx and containing in higher vertebrates the tongue and teeth. This cavity is also known as the buccal cavity, from the Latin bucca ("cheek"). Some animal phyla, including vertebrates, have a complete digestive system, with a<unk>  at one end and an anus at the other. Which end forms first in ontogeny is a criterion used to classify animals into protostomes and deuterostomes.
Mouth
Head
Skull
Eye
Earmold
Hand
Labdoor
Nail 