Many of their mouth parts are modified into sensory structures.

The nose has another sensory structure, called the vomeronasal organ, which is specialized for detecting pheromones.

Many of their mouthparts are modified into sensory structures.

The term campaniform refers to the bell shape appearance of these sensory structures when viewed in cross section.

The sensory structure above its mouth ruffled, and the being touched it again with its tongue.

Other illusions occur because of biological sensory structures within the human body or conditions outside of the body within one's physical environment.

The red rhinophores are sensory structures used for detecting the presence of possible mates and prey.

They also have sensory structures called chaetosemata, the functions of which are largely unknown.

Most languages, when arrayed in order, offer a rhythmic transition series or sensory structure.

These are sensory structures which help the bird sense vibration and hence seize its prey.