The abdominal vein in frogs helps to transport oxygenated blood from the lungs and skin to the heart for distribution to the rest of the body. It plays a crucial role in the frog's circulatory system by ensuring that oxygen is efficiently delivered to tissues and organs.
vena cava
superior mesenteric
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hepatic portal vein
hepatic portal vein
pulmonary
The superior vena cava.
It is the azygos vein that is located on right side of abdominal and thoracic aorta and in front of right vegus nerve that drains into superior vena cava on its posterior aspect just before vena cava drains into right atrium.azygos vein
The azygos vein forms near the diaphragm; runs anterior and to the right of the vertebral column and ends in the superior vena cava. These veins drain most thoracic structures and the abdominal wall.