mouthparts Modified paired appendages on the head segments of arthropods, used for feeding. A typical insect has a labium (lower lip), one pair each of mandibles and maxillae, and a labrum (upper lip), although in many the mouthparts are modified to form piercing stylets or a sucking proboscis. Crustaceans, centipedes, and millipedes have one pair of mandibles and two pairs of maxillae used for cutting and holding the food. Crustaceans also have several pairs of maxillipeds (see also maxillula). Arachnids have chelicerae and pedipalps.
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Painter, Eleanor (1890–1947) , pair / pe(ə)r/ • n. a set of two things used together or regarded as a unit: a pair of gloves. ∎ an article or object consisting of two joined or cor… Labium , labium (pl. labia) 1. The lower lip in the mouthparts of an insect, which is used in feeding and is formed by the fusion of a pair of appendages (the… Maxilla , max·il·la / makˈsilə/ • n. (pl. max·il·lae / makˈsilē; -ˈsilˌī/ ) Anat. & Zool. the jaw or jawbone, specifically the upper jaw in most vertebrates. I… spectroscopic binary , spectroscopic binary See STAR PAIR. Spinneret , spinneret •abet, aiguillette, anisette, Annette, Antoinette, arête, Arlette, ate, baguette, banquette, barbette, barrette, basinet, bassinet, beget,… Spinal nerves , spinal nerves Pairs of nerves that arise from the spinal cord (compare cranial nerves). In humans there are 31 pairs (one from each of the vertebrae)…
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