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The lower part of the digestive tract called the colon.
Inferior vena cava.
The descending aorta is the major blood vessel that supplies blood to the caudal half of a pig.
The lack of nutrients inside a cell compared to the blood vessel creates a concentration gradient between the blood vessel and the cell. Due to the lower concentration in the cell, the nutrients diffuse through the blood vessel wall and into the cell.
Kidney
All 3 types of blood vessels are present, Veins, Arteries, And Capillaries
There are a number of organs involved in excretion: the lower digestive tract including the colon, the kidneys, the lungs, and the sweat glands. The lower digestive tract removes or excretes indigestible items from the digestive tract. The kidneys remove urea which is a product of the breakdown of proteins. The lungs remove carbon dioxide which is also a waste product. And the sweat glands remove excess water.
Inferior vena cava
Inferior Vena Cava, collects blood from the lower extremities and runs up along side the abdominal aorta and into the heart.
There are two, the Superior Vena Cava that brings blood from the head, and the Inferior Vena Cava that brings blood from the lower body.
the superior and inferior vena cava.
Blood pressure is taken through an artery. Normal BP is highest in the artery side of the circulatory system and lower in the venous side.