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What do you find inside the crop of an earthworm?

The crop is part of the stomach and digestive system of an earthworm. We (my class and I) just did the dissection of an earthworm awhile ago, and basically it is the regular stomach.


Are the heart and lungs parts of the respiratory system?

The main part is the nerves the nerves tell your body to move.


How does an earthworms digestive system work?

The digestive system is partitioned into many regions, each with a certain function. The digestive system consists of the pharynx, the esophagus, the crop, the intestine and the gizzard. Food such as soil enters the earthworm's mouth where it is swallowed by the pharynx. Then the soil passes through the esophagus, which has calciferous glands that release calcium carbonate to rid the earthworm's body of excess calcium. After it passes through the esophagus, the food moves into the crop where it is stored and then eventually moves into the gizzard. The gizzard uses stones that the earthworm eats to grind the food completely. The food moves into the intestines as gland cells in the intestine release fluids to aid in the digestive process. The intestinal wall contains blood vessels where the digested food is absorbed and transported to the rest of the body.


What is the main function of your body's pneumatic system?

First of all, the body's main pneumatic system is the heart. THe heart pumps blood to the rest of the body and of course keeps you alive.


What are the parts in the circulatory system including the arteries?

The human body has 3 main parts:The heartThe bloodThe blood vesselsSometimes people count the fluid lymph, and the vessels that carry it in them, parts of the circulatory system.A few of the parts of the heart are ventricles, arteries, valves, the septum, and the atria. The pumping sound of the heart comes from valves opening and closing.