Cardiovascular System

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Cardiovascular System

• Chapter 9 -2

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ROLE - BLOOD

• Transport oxygen from the __________ to the
  _________ , collects ____________ from the
  tissues and brings it back to the lungs to be
  expelled
• Distributes nutrients, collects waste products
  and delivers them to organs that excrete, carries
  hormones to cells, maintains fluid content of
  tissues, regulates temperature
• Blood is normally ________of the animals body
  weight

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BLOOD

• 60 liquid ________________
• ______, __________, ___________fluid component of
  blood
• 90 ____________, 10 solutes mainly protein
  (ex fibrinogen which clots blood. When clotting
  elements are removed, the liquid is called
  __________________)
• Also contains some nutrients and some end
  products of metabolism, gases, nutrients,
  hormones, enzymes, and antibodies.
• 40 ___________________
• red blood cells (_______________), white blood
  cells (___________), platelets
  (__________________)
• Viscous
• color varies from _________________ (oxygenated
  blood) to _____________ (deoxygenated blood)

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• ERYTHROCYTES (red blood cells)
• Small ______________, _______________discs
• HEMOGLOBIN (_________-containing pigment that
  gives blood its red color when combined with
  oxygen)
• Hemoglobin binds oxygen and transports it on the
  RBC from the lungs to the tissues. It then picks
  up carbon dioxide from the tissues and the body
  expels the carbon dioxide on expiration.

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Anemia
If an animal has an iron-deficiency, hemoglobin
is reduced and the overall number of RBCs is
reduced, producing an anemia. Hypochromasia (less
color)
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LEUKOCYTES WBC, nucleated

• GRANULOCYTES
• White blood cells that originate in the
  _____________
• Have a lobed nucleus cytoplasm
• Have ____________ within the cytoplasm
• Classified according to staining of the granules
• _____________, _____________, ______________

• AGRANULOCYTES
• White blood cells that mature in the
  __________________
• Have a clear, ____________cytoplasm
• ________________-shaped nucleus
• __________________, _____________________

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Cell that detoxifies proteins produced by
allergens or parasitic infections. Granules
stain orange/red
Phagocytic cell that has a pink/grey cytoplasm
with neutral staining granules Red/Blue granules
Assist eosinophils Function somewhat unknown.
Granules stain dark purple.
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THROMBOCYTES

• THROMBOCYTES (platelets)
• ____________________
• originate by breaking off in pieces from the
  megakaryocte
• function in ___________, adhere to uneven or
  damaged surfaces
• once adhered, they release substances to contract
  blood vessels and promote clotting

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Scanning electron micrograph of blood cells. From
left to right human erythrocyte, thrombocyte,
leukocyte