the rest of the liquid is excreted out the side of the worm.ĥ. the fluid inside the previous section is brought to the nephridium and whatever nutrients that are in it are absorbed and sent via the bloodstream to parts of the worm's body. Which of the parts of the earthworms body that you saw are included in the excretory system: we saw the nephridia during the earthworm dissection, these excretory organs are in charge of liquid waste. what parts of the earthworm serve as its brain? what connects the brain to the rest of the body: the nerve collar serves as the earthworm's brain, the ventral nerve cord connects it to the rest of the body.Ĥ. the remaining dirt is pushed through the intestine and out the anus.ģ. after being 'ground up' by the gizzard, the dirt is pushed into the intestine, here enzymes break down the parts in the soil that the earthworm eats and absorb the broken down particles. when its ready, the dirt is pushed into the gizzard where its 'ground up' by the muscles around the crop contracting. here the food sits until the earthworm is ready to digest it. trace the earthworm's digestive tract: the Earthworm eats dirt with it's mouth (once the prostomium opens), the dirt goes through the esophagus and into the crop. the arches act as hearts to pump blood around the earthworm's circulatory system. what is the name of the earthworm's 'pumping organ': The earthworm's pumping organ(s) are the aordic arches.
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