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BIOL212
Majors animal: Anatomy of a liver fluke (matching)
Structure | Function |
---|---|
Oral sucker | Specialized for attachment to host; used in feeding |
Ventral sucker | Secondary point of attachment to host |
Pharynx | Muscular tube for pumping in blood and body fluids from host |
Gastrovascular cavity | Forked tube for digestion and distribution of nutrients throughout body (reduced in flukes) |
Testes | Produce sperm |
Vas deferens | Stores sperm and moves it to genital pore |
Genital pore | Receives sperm and moves it to the seminal receptacle |
Ovary | Produce ova |
Seminal receptacle | Receives sperm and stores it (often for the life of the fluke) eventually moving sit to the uterus where ova are fertilized |
Yolk gland and yolk duct | Ova are combined with yolk and shelled before passing to the uterus |
Uterus | Shelled, fertilized ova are stored here until release through the genital pore |
Excretory canals and ladder | Collect metabolic waste from the flame cells |
Excretory pore | Releases metabolic waste products out of the body |