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. 2022 Jan 28;13(2):142. doi: 10.3390/insects13020142

Figure 2.

Figure 2

Schematic of (A) Sensillum: A sensillum consists of accessory cells, olfactory sensory neurons (OSNs), and pores for odorant molecules to enter; (B) Antenna: The antennae in D. melanogaster’s head are covered with sensory hairs called sensilla. These are of four types, namely trichoid (needle-shaped), basiconic (club-shaped), coeloconic (peg-shaped), and intermediate (shape between basiconic & trichoid) sensilla (Modified from [40]).