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  1. open
  2. closed
  3. gastrovascular cavities (sounds weird but its right)
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10y ago

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What body system has the heart as its main organ?

the heart is part of the circulatory system in the body.


The main organ of the circulatory system is the what?

The Heart is the main organ of a circulatory system.


What are the two main part of the circulatory system?

The two main part of circulatory system are hearth and Arteries


What are the main organs for the respirtary system and circulatory systems?

The main organs of the respiratory system are the lungs. The main organs of the circulatory system are the heart and blood vessels.


How many types of circulatory systems do you have?

There are two main types of circulatory systems:1. Open2. ClosedIn an open circulatory system, blood mixes with internal organs directly. Organisms with this type of system do not have a true heart or capillaries. Instead of a true heart, there are blood vessels that act as pumps to force the blood along. Instead of capillaries, blood vessels join directly with open sinuses.In a closed circulatory system, blood is pumped through a closed system of arteries, veins, and capillaries.(:


What is the main function of the circulatory system?

The main function of your circulatory system is to oxygenate blood and pump it throughout your body


What is the main circulatory organ of the frog?

the heart is the main circulatory organ of the frog


Which is the larget and main artery of the circulatory system?

The largest and main artery of the circulatory system is the aorta. It drains the left ventricle.


What are the three main parts of the circulatory system?

The three main parts of the circulatory system are the heart, blood vessels, and blood.


How do you benefit from the Circulatory System?

The main function of the Circulatory System is to circulate blood through your body. So the Circulatory System keeps you alive.


What are the two main parts of the circulatory?

The two main part of circulatory system are hearth and Arteries


Organs in the respiratory and circulatory system?

The main organs of the respiratory system are the lungs. The main organs of the circulatory system are the heart, blood, and blood vessels.