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What are the cellular components of blood?
Erythrocytes (red blood cells)
Leukocytes (white blood cells)
Which type of leukocyte plays a key role in inflammation and allergic reactions?
(basophils, eosinophils, neutrophils)
Which blood type is considered to be a universal donor? universal recipient?
Universal donor: Type O
Universal recipient: Type AB
What is the Rh factor? Describe its effect on pregnancy.
Rh factor = an antigen on the surface of RBCs.
Following the birth of an Rh+ child, an Rh- mother develops antibodies to the Rh factor. These antibodies can attack the blood cells of an future Rh+ fetuses carried by the mother.
According to the Bohr effect, would high levels of H+ and HCO3- increase or decrease hemoglobin's affinity for oxygen?
Decrease hemoglobin's affinity for oxygen.
Describe the function of immunoglobulins (antibodies).
Attract other cells that can phagocytize an antigen or cause the antigens to clump together.
What role do T lymphocytes play in an immune response?
Involved in cell-mediated immunity.
Responsible for the body's defense against viral and fungal infections.
(T/F) Skin, ciliated mucosa, macrophages, and inflammatory responses are all examples of nonspecific defense mechanisms.
What happens to interstitial fluid that doesn't diffuse into a capillary?
Picked up by the lymphatic system and returned to the circulatory system.
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