The blood vascular system of Balanoglossus is of the open or lacunar type.It consists of:a colourless blood,a central sinus and a heart vesicle ,distributing vessles or arteries and sinuses,and collecting vessels or veins.
BLOOD-The blood is a colourless fluid, contaning few white corpuscles which are possibly detached endothelial cells. A respiratory pigment is probably absent. The functioning of the circulatory system is not properly understood.
BLOOD-The blood is a colourless fluid, contaning few white corpuscles which are possibly detached endothelial cells. A respiratory pigment is probably absent. The functioning of the circulatory system is not properly understood.
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