Functions of Blood: 8 Important Facts about Blood

Just how important is blood to the human body? It not only transports oxygen and other substances throughout the body, but it helps fight sickness. Did you know it also transports nutrients and hormones? Find out more facts about this living fluid.

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At the Heart of It All: Anatomy and Function of the Heart

• The heart is a pump comprised of many structures.
• The heart wall has three layers.
• Atria: the two upper chambers
• Ventricles: the two lower chambers
• Valves: like doors to the chambers
• It all comes together in the cardiac cycle.

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Blood Vessel Structure and Function: How the Circulatory Network Helps Fuel the Entire Body

• There are three main types of blood vessels in the body.
• Oxygenated blood flows away from the heart through the arteries.
• The role of veins and venules
• Capillaries: where the exchange of gas, nutrients, and waste between blood and tissue takes place
• Blood pressure and blood flow force

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Pulmonary Circulation and Systemic Circulation: The Routes and Function of Blood Flow

• What’s the difference between pulmonary and systemic circulation?
• How is the heart involved?
• What other system works with the circulatory system during pulmonary and systemic circulation?
• What’s the pulmonary loop?
• What's the path of the systemic loop?

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Circulatory System Pathologies: Common Diseases and Disorders

• Abdominal aortic aneurysm
• Mitral valve prolapse
• Coronary artery disease
• Myocardial infarction
• Stroke

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