Blood Pathway Quiz

Blood Pathway Overview

• Blood circulates through two pathways: right side (pulmonary circulation) and left side (systemic circulation).

Right Side Pathway

• Inferior Vena Cava: Carries deoxygenated blood from the lower body to the heart.
• Right Atrium: Receives deoxygenated blood from the superior and inferior vena cava.
• Tricuspid Valve: Controls blood flow from the right atrium to the right ventricle; prevents backflow during contraction.
• Right Ventricle: Pumps deoxygenated blood to the lungs via the pulmonary artery.
• Pulmonary Valve: Opens to allow blood to flow from the right ventricle into the pulmonary artery.
• Pulmonary Artery: Transports deoxygenated blood to the lungs for oxygenation.
• Lungs: Site of gas exchange where carbon dioxide is expelled and oxygen is absorbed.

Left Side Pathway

• Lungs: Oxygenated blood returns from the lungs to the heart.
• Pulmonary Vein: Brings oxygenated blood from the lungs to the left atrium.
• Left Atrium: Receives oxygenated blood from the pulmonary veins.
• Mitral Valve (Bicuspid Valve): Facilitates blood flow from the left atrium to the left ventricle; prevents backflow.
• Left Ventricle: Pumps oxygenated blood into the aorta and throughout the body.
• Aortic Valve: Regulates blood flow from the left ventricle into the aorta.
• Aorta: The largest artery in the body, distributing oxygen-rich blood to all body tissues.

Heart Components

• Pulmonary Veins: Carry oxygenated blood from the lungs to the left atrium.
• Pulmonary Artery: Exits the right ventricle, transporting deoxygenated blood to the lungs.
• Aorta: Main artery carrying oxygenated blood from the left ventricle to the systemic circulation.
• Aortic Valve: Ensures one-way flow of blood from the left ventricle to the aorta.
• Mitral Valve (Bicuspid Valve): Allows blood to flow from the left atrium to the left ventricle and prevents backflow during contraction.
• Left Ventricle: Most muscular part of the heart, responsible for pumping blood at high pressure to the entire body.
• Left Atrium: Receives oxygenated blood from the lungs and transfers it to the left ventricle.

Test your knowledge on the blood pathway through the human heart. This quiz covers both the right and left sides of the heart, including the major vessels and valves involved in circulation. Understand how blood flows from the body to the heart and then to the lungs and back again.