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10 Cards in this Set
- Front
- Back
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Contrast the general roles of blood, lymph, and interstitial fluid in maintaining homeostasis?
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Blood carries oxygen to the body and nutrients to the tissues and carries cellular waste products away from the tissues. Maintain profusion in homeostasis.
The lymphatic system is your immunity system, comprised of WBC, the primary function is to fight infection. Maintain health of cells and organs in homeostasis. Interstitial fluid is plasma is carries the RBC, WBC, plasma and other substances such as chemicals, minerals, and nutrients. These are all distributed throughout the body as needed, and recycled once used. Maintains health of cells and organs in homeostasis. |
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Define the principle physical characteristics of blood and its functions in the body?
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Blood is a red fluid consisting of plasma and formed elements or cells suspended in the plasma. Blood carries oxygen to the body and nutrients to the tissues and carries cellular waste products away from the tissues.
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Compare the origins of the formed elements in the blood?
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RBC, WBC and platelets are all formed from stem cells that are found in the bodies bone marrow.
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Discuss the structure of erythrocytes and their function in the transport of oxygen and carbon dioxide?
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Erythrocytes are disk shaped RBCs. They contain hemoglobin that is bound with oxygen that it transports to the tissues of the body.
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Discuss the structure of thrombocytes and explain their role in blood clotting?
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Thrombocytes are small cells that are essential in clot formation. Platelets collect and form a foundation for the clot.
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List the components of plasma and explain their importance?
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Plasma is 92% water and 8% dissolved substances such as chemicals, minerals and nutrients. Plasma propels the blood cells and platelets as they would not be able to propel themselves.
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Explain how the body attempts to prevent blood loss?
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The body attempts to prevent blood loss by clotting, using the platelets, other proteins and calcium to solidify the blood and stop the bleeding.
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Identify the stages involved in blood clotting?
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The platelets form around the wound forming a foundation for the clot. Clotting proteins produced in the liver solidify the remainder of the clot, which include RBC and WBC to prevent infection.
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Explain the various factors that promote and inhibit blood clotting?
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It's an important part in hemostasis – the prevention of blood loss. Platelets immediately form a plug at the site of injury; this is called primary hemostasis. Secondary hemostasis occurs simultaneously: Proteins in the blood plasma, called coagulation factors or clotting factors, respond in a complex cascade to form fibrin strands, which strengthen the platelet plug.
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Define the antigen-antibody reaction as the basis for ABO blood grouping?
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A, B, O, AB are antigens which are found in the plasma membrane. If an antigen is introduced, not of that type, antibodies will attack those blood cells.
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