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Pallial complex of Pila globosa B Sc Ist year Zoology
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=yBzY-Xyxvxg
Mantle or pallium or covers the visceral mass like skin. • Forms a hood over the animal when it withdraws in the shell. • Edge of the Mantle is thick and contain shell glands with secrete the shell. • Above the thickened edge there is present a long narrow supra-marginal groove. • Mantle has 2 flashy lobes called nuchal lobes pseudepipodia. • Left pseudepipodia forms a long tubular respiratory siphon for aerial respiration. • Right pseudepipodia less developed and not a regular tube respiratory current passes out through it • Anterior part of the shell, a large space between the mantle and the body called mantle or pallial cavity. • Head can be easily withdrawn into it. • Mantle or pallial cavity encloses within it a number of important organs which are collectively form the pallial complex. • Pallial complex includes epitaenia, pulmonary sac or lung, Osphradium, ctenidium or gills, rectum, genital duct and anterior Chamber of the kidney. • Phylum Mollusca General characteristics- • Phylum Mollusca General characteristi... • #Pallialcomplex • #pilaglobosa • #bsc1styearzoology
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