Which type of leukocyte plays a key role in the immune response?
Describe the function of a monocyte.
Phagocytizes foreign matter.
What are the 4 blood types?
A, B, AB, O
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.
(T/F) Platelets play a key role in the immune response.
False - key players in clot formation.
Which proteins are essential for proper clotting?
(T/F) B lymphocytes are involved in humoral immunity.
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.
Describe a lymph node and its function.
Lymph node = swelling along a lymphatic vessel that contains phagocytic cells. Function to filter the lymph and remove/destroy foreign particles.