The coxal gland is a gland found in some arthropods, for collecting and excreting urine. They are found in all arachnids (with the exception of some Acari), and in other chelicerates, such as horseshoe crabs.[1] The coxal gland is thought to be homologous with the antennal gland of crustaceans.[2] The gland comprises 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]
coxal gland — ▪ zoology in certain arthropods, one of a pair of excretory organs consisting of an end sac where initial urine is collected, a tubule where secretion and reabsorption may take place, and an excretory pore at the base (coxa) of one of the… … Universalium
coxal gland — noun : one of certain paired glands with ducts opening in the coxal region of arthropods and in some forms (as spiders) functioning as excretory organs … Useful english dictionary
coxal gland — (Order Amphipoda): Segmentally arranged series of small excretory structures, one pair in each somite (pereonite) of pereon as well as in first four abdominal somites [Stachowitsch, 1992] … Crustacea glossary
excretion — excretion1 /ik skree sheuhn/, n. 1. the act of excreting. 2. the substance excreted, as urine or sweat, or certain plant products. [1595 1605; < LL excretion (s. of excretio) that which is sifted out. See EXCRETE, ION] excretion2 /ik skree… … Universalium
arachnid — arachnidan /euh rak ni deuhn/, adj., n. /euh rak nid/, n. 1. any wingless, carnivorous arthropod of the class Arachnida, including spiders, scorpions, mites, ticks, and daddy longlegs, having a body divided into two parts, the cephalothorax and… … Universalium
Lithobius — Taxobox name = Lithobius image caption = Lithobius forficatus regnum = Animalia phylum = Arthropoda subphylum = Myriapoda classis = Chilopoda ordo = Lithobiomorpha familia = Lithobiidae genus = Lithobius genus authority = Leach, 1814 Lithobius is … Wikipedia
sternal taenidium — (ARTHROPODA: Chelicerata) In Opilioacariformes, a surface canal in the sternal region of the podosoma extending from the coxal gland orifice, between coxae I and II, to the subcapitular gutter … Dictionary of invertebrate zoology
Insect morphology — Legend of body parts Tagmata : A Head, B Thorax, C Abdomen. 1. antenna 2. ocelli (lower) 3. ocelli (upper) 4. compound eye 5. brain (cerebral ganglia) 6. prothorax … Wikipedia
Arachnid — Taxobox name = Arachnida image width = 250px image caption = Arachnida from Ernst Haeckel s Kunstformen der Natur , 1904 regnum = Animalia phylum = Arthropoda subphylum = Chelicerata classis = Arachnida classis authority = Cuvier, 1812… … Wikipedia
coxa — ( ) [Holthuis, 1993]. Schematic drawing of a thoracic leg. [Holthuis, 1993] Article 1 of thoracic and abdominal appendages [Holdich and Jones, 1983]. First article of limb, usually short [Poore, 2004]. First or proximal article of leg or… … Crustacea glossary
