Write a short note on open type of circulatory system
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- Open circulatory systems are systems where blood, rather than being sealed tight in arteries and veins, suffuses the body and may be directly open to the environment at places such as the digestive tract.
- Open circulatory systems use hemolymph instead of blood. This “hemolymph” performs the functions of blood, lymph, and intestinal fluid – which are three different, highly specialized fluids in animals with closed circulatory systems....
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It is the system where the blood flows freely.
- The system is most commonly found in invertebrates. For example it is present in molluscs and arthropods.
- There are no vessels to conduct the blood here, so it runs freely into cavities making it impossible to regulate the amount of blood.
- The capillary system is absent in such a system, and the blood is in direct contact with the surrounding tissues. There is also no gas transport and nutrients are shared directly between blood and tissues.
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