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Understanding the Circulatory System for Optimal Health

Learn about how the circulatory system functions to transport nutrients, oxygen, and waste throughout the body. Explore the roles of blood, blood vessels, and the heart in maintaining overall health and vitality.

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Understanding the Circulatory System for Optimal Health

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  1. CIRCULATORY SYSTEM Circulatorysystemtransportsnutrients, oxigen and residuesaroundthebody

  2. BLOOD BLOOD VESSELS HEART

  3. BLOOD • PLASMA. Whichiswaterwithdifferentsubstancesdissolved in it. • BLOOD CELLS: • RED BLOOD CELLS. Transportoxigen. WHITE BLOOD CELLS Defendusfrominfections • PLATELETS Block ourwounds.

  4. BLOOD VESSELS • ARTERIES. • Transportthebloodfromthehearttothebody. • Theirwalls are thick and havemuscles. • VEINS • Transportthebloodfromthebodytotheheart • Theirwalls are thin and theyhavevalvesinside • CAPILLARIES • Connecttheveins and arteries and reachallthecells in ourbody. • They are verysmallvessels.

  5. THE BLOOD VESSELS

  6. THE HEART • Itis a pumpmadeby a specialkind of musclefibres , calledcardiacmuscles . • Itisdividedintotwoinconnectedparts: theright and theleft. • Eachpartisalsodividedintotwoparts: • Theupperpartistheauricleoratrium • Thelowerpartistheventricle • Bothparts are connectedby a valve

  7. THE HEART

  8. BLOOD CIRCULATION • Theblood can travel round bytwocirculations. • Pulmonarycirculation • Sistemiccirculation • Video aboutbloodcirculation

  9. 3.Fromthelungs, thepulmonaryveinsreturntheoxygen-richbloodtotheheart, whereitenterstheleftauricule. 1. Blood with carbon dioxide (oxygen-depleted blood), nutrients and waste substances from the heart, enters through the vena cava into the right ventricle. 2.Thebloodispumpedthroughthepulmonaryarteriestothelungswhereitisoxygenated. Thepulmanorycirculation Carbondioxide-richblood Oxygen-richblood Lungs Pulmonary vein Pulmonary vein Pulmonary artery Vena cava Left auricle Right auricle Right ventricle Left ventricle

  10. 1.Oxygen-richbloodfromtheleftventricleispumpedoutviathe aorta and intotherest of thebody. 2.Thearteriesbranchoutintocapillariesthattransporttheoxygen and thenutrientstothecells of thebody. 3.Theoxygen-depletedbloodflows back totheheartthroughthe vena cavae: thepulmonarycirculationstartsagain. Thesistemic circulation Carbondioxide-richblood Oxygen-rich blood Vena cava Aorta Left auricle Right auricle Left ventricle Right ventricle

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