tracheae

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Respiratory system of a Spider Royalty Free Stock Photo

Insect respiratory system (tracheal system). Cross section through the abdomen illustrating of the tracheation. Royalty Free Stock Photo

Insect trachea and tracheae plant, vintage engraving Royalty Free Stock Photo

Larval dragonfly grey shell. Nymphal exuvia of Gomphus vulgatissimus. White filaments hanging out of exuvia are linings of Royalty Free Stock Photo

Detailed cross-section of a bee wing revealing internal structures like hemolymph, tracheae, and nerve bundles

Cross-section of a bee wing displays detailed internal structures. The outer layer is a yellow cuticle, followed by the epidermal cells and enderolymph. Beneath, blue-shaded areas represent the hemolymph, a fluid analogous to blood in arthropods. Red lines indicate nerve bundles. The diagram labels tracheae and tracheoles, part of the respiratory system. Thin black lines specify the outer cuticular exoskeleton. This detailed illustration highlights the complex anatomy essential for wing function in bees.