Name the main blood vessels to and from the heart, lungs, liver and kidneys.

Transport in Humans – 8.2

Main Blood Vessels to and from the Heart

Think of the heart as a double‑pump that keeps the body’s traffic flowing. The blood that comes into the heart is like fresh water entering a reservoir, and the blood that leaves is like water being pumped out to the rest of the city. 🚰💓

• Superior Vena Cava – brings oxygen‑poor blood from the upper body (head, neck, arms) into the right atrium.
• Inferior Vena Cava – brings oxygen‑poor blood from the lower body (abdomen, legs) into the right atrium.
• Aorta – the main artery that carries oxygen‑rich blood from the left ventricle to the rest of the body.
• Pulmonary Arteries – carry oxygen‑poor blood from the right ventricle to the lungs.
• Pulmonary Veins – bring oxygen‑rich blood from the lungs back to the left atrium.

Blood Vessels to and from the Lungs

The lungs are like a cleaning station where blood swaps carbon dioxide for oxygen. The main vessels are the pulmonary arteries and veins. 💨🫁

1. Right ventricle → Pulmonary Arteries → Lungs.
2. Lungs → Pulmonary Veins → Left atrium.

Blood Vessels to and from the Liver

The liver is the body’s detox centre. It receives two blood supplies: one rich in nutrients from the digestive tract, and one rich in oxygen from the heart. Think of it as a double‑source factory. 🏭🍽️

• Hepatic Portal Vein – carries nutrient‑rich blood from the stomach and intestines to the liver.
• Hepatic Artery – supplies oxygenated blood from the heart.
• Hepatic Vein – carries processed blood from the liver back to the heart.

Blood Vessels to and from the Kidneys

The kidneys are the body’s filtration system, like a high‑tech water filter that removes waste. The main vessels are the renal arteries and veins. 🔬🚿

1. Heart → Renal Arteries → Kidneys.
2. Kidneys → Renal Veins → Heart.

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