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The Vital Functions of the Circulatory System

Explore the circulatory system's role in transporting nutrients, gases, and hormones, supported by other systems. Learn about the heart's pumping action, vessel types, and the significance of hemoglobin. Discover how hemoglobin facilitates oxygen transport and its fascinating structure.

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The Vital Functions of the Circulatory System

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  1. CirculatorySystem

  2. Functions • Transportnutrients, gases and hormones. • Transportthrough red cells. • Supportedbyothersystemssuch as therespiratory and digestivesystem. • Heartdeliversthebloodtoallthebodybypumping.

  3. Vessels • Thebloodistransportedthrough a vesselnetwork. • Threedifferenttypes of vessels:

  4. Arteries • Recivethestrongestpumpingenergyfromtheheart. • They are thick and itswallsexpands. • Regulatethebloodflowfortherest of thevessels.

  5. Veins • Not as thickbutstillresistant. • Thelargestlenth of thevessels. • Conectsalmostthewholebody and theyhavethethickerdiametertolettheflowrun.

  6. Capillars • Thethinner and smallest of thethree. • Itsworkistotransportthebloodalmostdirectlytothecells.

  7. Hemoglobin • Themost importan proteininvolved in theprocess. • In charge of carringtheoxygen in the red cells.

  8. Makes up to 35% of the total of a red cell. • Givesthe red colourtothecell. • Can also be found in somebraincells, alveolar cells, mesangialcells, etc. • A Slightvariation of theproteinprevents as frompoisoning. (Leghtmoglobin)

  9. Discovering • ItwasdiscoveredbyFelix Hoppe-Seyler in 1840. • The words come from Hemo and Globin that makes reference that the protein is from the globin type of protein attached to a Hemo group.

  10. Compossure • Quaternarystructure: • Twoalphahelix and two beta sheetstructureswith a hemogroupforeachstructure. • 4 pyrrolgroups and oneironmoleculeforeachstructure.

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