Correct spelling for the English word "onion bodies" is [ˈʌni͡ən bˈɒdɪz], [ˈʌniən bˈɒdɪz], [ˈʌ_n_iə_n b_ˈɒ_d_ɪ_z] (IPA phonetic alphabet).
Onion bodies refer to specialized structures found in the olfactory system of certain animals, particularly invertebrates such as insects. These structures are unique in shape and consist of concentric layers, resembling the layers of an onion, hence the name.
The term "onion bodies" is most commonly used when discussing the anatomy and function of the insect brain, specifically in relation to their olfactory or chemical sensory system. These bodies are primarily composed of densely packed spherical clusters of neurons, which are interconnected via neural pathways. The layers within the onion bodies contain different types of neurons, each playing a specific role in the processing and integration of olfactory information.
The onion bodies are known to be involved in various functions, including learning, memory, and sensory processing. In insects, they are often associated with the formation and consolidation of olfactory memories, allowing the animal to associate certain odors with specific behaviors or experiences. They are also believed to play a significant role in sensory integration, helping to filter, analyze, and interpret odor information from the environment.
Overall, onion bodies are critical structures in the insect brain that contribute to their olfactory capabilities and cognitive processes, making them an essential component of their sensory and behavioral repertoire.
Epithelial pearls.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.