Thoracic Abdominal Arteries: Major arteries in the thoracic and abdominal regions include the aorta and its branches, which supply oxygenated blood to the chest organs, abdominal viscera, and lower limbs.
Aorta: The aorta is the largest artery in the body, emerging from the left ventricle of the heart and distributing oxygenated blood to all systemic arteries via its ascending, arch, thoracic, and abdominal segments.
Thoracic Abdominal Veins: These veins include the superior and inferior vena cava, azygos system, and hepatic veins, which return deoxygenated blood from the thorax and abdomen to the heart.
Major Systematic Veins: Major systemic veins include the superior and inferior vena cava, jugular veins, subclavian veins, and iliac veins, all channeling deoxygenated blood back to the heart.
