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Antennae (sg.: antenna) (sometimes referred to as "feelers") are paired appendages used for sensing in arthropods. Antennae are connected to the first one or two segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments.
The coxal gland is thought to be homologous with the antennal gland of crustaceans. The gland consists of an end sac (saccule), a long duct (labyrinth) and a terminal bladder (reservoir). [2] There is generally only one pair (two in some spiders), and they open on the coxae of the walking legs [1] or at the base of the second antennae in the ...
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Pages in category "Crustacean anatomy" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. B. Branchial chamber;
Dozens of more or less distinct solutions to the problem, dating back to at least 1897, [5] have been published, including several in the 2000s. The arthropod head problem is popularly known as the endless dispute , the title of a famous paper on the subject by Jacob G. Rempel in 1975, [ 6 ] referring to its seemingly intractable nature.
Abludomelita obtusata, an amphipod. Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are a part of the subphylum Crustacea (/ k r ə ˈ s t eɪ ʃ ə /), a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp, branchiopods ...
Parabathynellidae is a family of crustaceans belonging to the order Bathynellacea. [1] These creatures are characterized by their slender bodies, reduced eyes, and elongated antennae. They are typically less than 1 mm in length, making them difficult to observe without the aid of a microscope.
The celiac lymph nodes are associated with the branches of the celiac artery.Other lymph nodes in the abdomen are associated with the superior and inferior mesenteric arteries.