circulatory system
Body's transport highways
The circulatory system is the network of organs and vessels that moves blood through the body—the heart, arteries, veins, and capillaries.
Blood carries oxygen and nutrients to tissues and removes waste.
The term extends to similar transport systems: the circulatory system of a building's ventilation.
Circulatory system's pump
- arteriesTubes carrying oxygenated blood
- veinsBlood-return tubes
- capillariesTiniest blood vessels
- bloodBody's oxygen carrier
vessels · aorta · vena cava · pulmonary · arterioles · venules · plasma · hemoglobin
Adding breathable gas
- perfusionFluid delivery to tissue
- pulseArterial blood throb
- blood pressureCirculatory force measurement
- vasoconstrictionArterial walls contracting inward
vasodilation · cardiac output · blood flow · systole · diastole · waste removal · thermoregulation · clotting
Chronic elevated arterial pressure
- thrombosisClot forming in vessel
- angioplastyProcedure to widen vessels
- cardiologyStudy of cardiac disorders
- tachycardiaExcessively fast pulse
bradycardia · electrocardiogram · arrhythmia · atherosclerosis · aneurysm · embolism · stroke · heart attack
heart
Circulatory system's pump
- arteriesTubes carrying oxygenated blood
- veinsBlood-return tubes
- capillariesTiniest blood vessels
blood · vessels · aorta · vena cava · pulmonary · arterioles · venules · plasma · hemoglobin · endothelium
oxygenation
Adding breathable gas
- perfusionFluid delivery to tissue
- pulseArterial blood throb
- blood pressureCirculatory force measurement
vasoconstriction · vasodilation · cardiac output · blood flow · systole · diastole · waste removal · thermoregulation · clotting · coagulation
hypertension
Chronic elevated arterial pressure
- thrombosisClot forming in vessel
- angioplastyProcedure to widen vessels
- cardiologyStudy of cardiac disorders
tachycardia · bradycardia · electrocardiogram · arrhythmia · atherosclerosis · aneurysm · embolism · stroke · heart attack · bypass
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- body systems
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circulatory systemnervous system
Signal transmission network
neural pathways · skeletal framework · bone structure · central nervous system · peripheral nervous system
circulatory systemnervous system
Signal transmission network
skeletal system · muscular system · digestive system · respiratory system · excretory system
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