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Circulatory System!

The circulatory system, the body's longest system, plays a vital role in transporting blood throughout. If all blood vessels were laid end-to-end, they would stretch approximately 60,000 miles—one-fourth of the distance to the moon! Key components include arteries, veins, and capillaries, with the heart functioning as the central pump. This system transports oxygen, nutrients, and waste products. Diseases affecting the heart, such as arrhythmia, bradycardia, and various infectious disorders, highlight the importance of understanding this crucial system for maintaining overall health.

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Circulatory System!

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  1. Circulatory System! By: Mary Currin

  2. Facts about the circulatory system… • the longest system of the body • If one were to lay all the blood vessels in a single human body end to end, they would stretch one fourth the way from earth to the moon a distance of 60,000 miles • The blood and lymphatic system are part of the circulatory system

  3. anatomy • Pulmonary arteries- take blood away from right ventricle to the lungs for oxygen • Pulmonary veins- brings oxygenated blood from the lungs to the left atrium • Aorta- takes blood away from the left ventricle to the rest of the body • Superior and the inferior vena cava- the large veinous blood vessels which bring deoxygenated blood to the right atrium from all the parts of the body

  4. structure

  5. Functions • The heart is the pump that circulates blood to all parts of the body • Arteries, veins, and the capillaries are the structures that take blood from the heart to the cells and return blood from the cells back to the heart • Blood carries oxygen and nutrients to the cells and carries the waste products away • The lymph system returns excess fluid from the tissues to the general circulation and manufactures lymphocytes

  6. Diseases of the heart • Arrhythmia or dysrhythmia- term used to discuss any change or deviation from the normal rate or rhythm of the heart • Bradycardia- term used for slow heart rate (less than 60 beats per minute) • Tachycardia- term used for rapid heart rate (more than 100 beats per minute) • Murmurs- indicates defects in the valves of heart • Mitral valve prolapse- condition where the valve between the left ventricle closes imperfectly

  7. Infectious disorders of the heart Pericarditis- inflammation of the outer membrane covering the heart Myocarditis- inflammation of the heart muscle. Endocarditis- inflammation of the membrane that lines the heart and covers the valves. Rheumatic heart disease- valve becomes inflamed, then the mitral valve is unable to close property, which interferes with blood flow from left atrium to left ventricle. This could be a result of a person that had frequently strep throat in their childhood.

  8. Infectious diseases continued… myocarditis Rheumatic heart disease

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