Not sure what you're asking here. If the circulatory system is needed to be visible on an X-ray, then substances are injected into the blood that will show up clearly on the radiologists equipment.
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Yes, cardiology is the medical study of the heart which is involved in the circulatory system.
They both have the word circulatory in their name, except respiratory system. A little known fact is that they are married and second cousins, are you confused? i was too until i asked my mother who is also my sister and daughter.
closed circulatory system (double circulatory system)
They're both the circulatory system.
Amphibians have closed circulatory system Closed
The circulatory system
open circulatory systemclosed circulatory system.
The cadiovascular system, sometimes called the circulatory system when it includes the lymphatic system.
Well,circulatory system is made up of BLOOD and heart.
i believe it is the circulatory and the cardio-vascular systems cardiovascular or circulatory
can a plant have a circulatory system
closed circulatory system.