Circulatory System and Pathway of Blood Through the Heart

This video introduces the circulatory system, explaining how blood transports glucose and gases throughout the body. It covers the composition and functions of blood, including plasma and cellular components like red and white blood cells. The anatomy of the heart is detailed, highlighting the flow of blood through its chambers and valves. The video also traces the pathway of blood from the body to the heart, lungs, and back, emphasizing the importance of oxygenation. Finally, it touches on heart conditions like atrial septal defects and their potential impacts.

What is the primary role of the circulatory system?

• To store energy

• To produce hormones

• To transport nutrients and gases

• To digest food

Which component of blood is responsible for transporting gases?

• Red blood cells

• Platelets

• Plasma

• White blood cells

What color is human blood, regardless of oxygen levels?

• Red

• Yellow

• Green

• Blue

Which side of the heart pumps oxygenated blood?

• Right side

• Left side

• Both sides

• Neither side

What is the function of the heart valves?

• To mix oxygenated and deoxygenated blood

• To increase blood pressure

• To store blood

• To prevent backflow of blood

Through which vessel does deoxygenated blood return to the heart?

• Coronary artery

• Vena cava

• Aorta

• Pulmonary vein

What condition involves the mixing of oxygen-rich and oxygen-poor blood due to a septal defect?

• Hypertension

• Pulmonary embolism

• Atrial septal defect

• Coronary artery disease