1. Cardiovascular System
Chapter 9 -2

2. 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 animal’s body weight

3. 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)

6. 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.

7. 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)

9. 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
__________________, _____________________

10. Granules stain orange/red
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.

11. 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

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