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Unformatted text preview: ⇒ food gut ⇒ water pharyngeal slits atrium • endostyle: o secretes mucus traps food o secretes iodinated proteins o homologous with thyroid gland • food particles get trapped in mucus held in pharynx pass to midgut: undergo digestive processes involving food breakdown • midgut diverticulum (hepatic caecum or diverticulum): o probably homologous w/ liver and pancreas o produces many digestive enzymes • digested food hindgut (for absorption) • fecal matter out the anus • atrium : o space between pharynx and body wall o also receives nitrogenous waste o eggs (females) and sperm (males) from gonads o all go out atriopore...
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- Spring '08
- mucus traps food, mouth pharynx w/, H2O current path