Podcast
Questions and Answers
What distinguishes lymphocytes from one another?
What distinguishes lymphocytes from one another?
Which system is used to classify cell surface molecules on lymphocytes in domestic animal species?
Which system is used to classify cell surface molecules on lymphocytes in domestic animal species?
What do lymphocytes possess in addition to antigen receptors?
What do lymphocytes possess in addition to antigen receptors?
Which type of lymphocyte plays a role in innate immunity?
Which type of lymphocyte plays a role in innate immunity?
Signup and view all the answers
What is the function of T cells in the immune system?
What is the function of T cells in the immune system?
Signup and view all the answers
What is the collection of cell surface molecules on a lymphocyte called?
What is the collection of cell surface molecules on a lymphocyte called?
Signup and view all the answers
What is the approximate diameter of lymphocytes?
What is the approximate diameter of lymphocytes?
Signup and view all the answers
Which organelle is found in the thin cytoplasmic rim surrounding the nucleus of lymphocytes?
Which organelle is found in the thin cytoplasmic rim surrounding the nucleus of lymphocytes?
Signup and view all the answers
Which lymphocyte subpopulation can be identified by their characteristic cell surface molecules and behavior?
Which lymphocyte subpopulation can be identified by their characteristic cell surface molecules and behavior?
Signup and view all the answers
Where do T cells accumulate after leaving the thymus?
Where do T cells accumulate after leaving the thymus?
Signup and view all the answers
What type of immunity is affected due to neonatal thymectomy?
What type of immunity is affected due to neonatal thymectomy?
Signup and view all the answers
Which lymphocyte type is usually larger than T or B cells and may contain cytoplasmic granules?
Which lymphocyte type is usually larger than T or B cells and may contain cytoplasmic granules?
Signup and view all the answers
What percentage of lymphocytes in blood are T cells?
What percentage of lymphocytes in blood are T cells?
Signup and view all the answers
Which type of lymphocytes originate and mature within Peyer’s patches or in the bone marrow?
Which type of lymphocytes originate and mature within Peyer’s patches or in the bone marrow?
Signup and view all the answers
Which CD designation is found only on the T cells that recognize processed exogenous antigen?
Which CD designation is found only on the T cells that recognize processed exogenous antigen?
Signup and view all the answers
Which type of lymphocyte expresses more antigen receptors on its surface?
Which type of lymphocyte expresses more antigen receptors on its surface?
Signup and view all the answers
Which CD molecule is part of the IL-2 receptor?
Which CD molecule is part of the IL-2 receptor?
Signup and view all the answers
Which type of lymphocytes express CR1 and CR2 complement receptors?
Which type of lymphocytes express CR1 and CR2 complement receptors?
Signup and view all the answers
Which integrin controls the binding of leukocytes to vascular endothelial cells?
Which integrin controls the binding of leukocytes to vascular endothelial cells?
Signup and view all the answers
Which selectin binds lymphocytes to high endothelial venules in lymphoid organs?
Which selectin binds lymphocytes to high endothelial venules in lymphoid organs?
Signup and view all the answers
Which member of the Immunoglobulin superfamily (IgSF) binds to the integrin, CD11a/CD18?
Which member of the Immunoglobulin superfamily (IgSF) binds to the integrin, CD11a/CD18?
Signup and view all the answers
Which CD designation is a receptor for MHC class II molecules?
Which CD designation is a receptor for MHC class II molecules?
Signup and view all the answers
Which type of lymphocytes have about 200,000 to 500,000 identical antigen receptors (BCRs) on their surface?
Which type of lymphocytes have about 200,000 to 500,000 identical antigen receptors (BCRs) on their surface?
Signup and view all the answers
Which molecule is a receptor for MHC class I molecules and is found only on T cells that attack and kill abnormal cells?
Which molecule is a receptor for MHC class I molecules and is found only on T cells that attack and kill abnormal cells?
Signup and view all the answers
Which molecule binds to the Fc region of IgG antibodies and is found on lymphocytes?
Which molecule binds to the Fc region of IgG antibodies and is found on lymphocytes?
Signup and view all the answers
Which molecule has not been identified as a receptor on lymphocytes for IgD antibodies?
Which molecule has not been identified as a receptor on lymphocytes for IgD antibodies?
Signup and view all the answers
Which immune cell type expresses CR2 (CD21) that binds to C3d and C3bi complement proteins?
Which immune cell type expresses CR2 (CD21) that binds to C3d and C3bi complement proteins?
Signup and view all the answers
Which integrin binds leukocytes to extracellular matrix proteins like fibronectin, laminin, and collagen?
Which integrin binds leukocytes to extracellular matrix proteins like fibronectin, laminin, and collagen?
Signup and view all the answers
Which selectin binds neutrophils, T cells, and monocytes when activated during inflammation?
Which selectin binds neutrophils, T cells, and monocytes when activated during inflammation?
Signup and view all the answers
"Which CD molecule is part of the IL-5 receptor?"
"Which CD molecule is part of the IL-5 receptor?"
Signup and view all the answers
Which type of lymphocyte expresses CR1, binding to C3b and C4b complement proteins?
Which type of lymphocyte expresses CR1, binding to C3b and C4b complement proteins?
Signup and view all the answers
Which molecule regulates the migration of T cells into areas of inflammation?
Which molecule regulates the migration of T cells into areas of inflammation?
Signup and view all the answers
Which type of lymphocyte is characterized by the presence of obvious cytoplasmic granules?
Which type of lymphocyte is characterized by the presence of obvious cytoplasmic granules?
Signup and view all the answers
Which organelle is found in a small amount in the thin cytoplasmic rim surrounding the nucleus of lymphocytes?
Which organelle is found in a small amount in the thin cytoplasmic rim surrounding the nucleus of lymphocytes?
Signup and view all the answers
Which lymphocyte subpopulation accumulates in the PALS of the spleen after leaving the thymus?
Which lymphocyte subpopulation accumulates in the PALS of the spleen after leaving the thymus?
Signup and view all the answers
Which lymphocyte subpopulation expresses more antigen receptors on its surface?
Which lymphocyte subpopulation expresses more antigen receptors on its surface?
Signup and view all the answers
Which lymphocyte subpopulation is responsible for cell-mediated immunity?
Which lymphocyte subpopulation is responsible for cell-mediated immunity?
Signup and view all the answers
Which lymphocyte subpopulation can be identified by their characteristic cell surface molecules and behavior?
Which lymphocyte subpopulation can be identified by their characteristic cell surface molecules and behavior?
Signup and view all the answers
Which type of lymphocyte is responsible for cell-mediated immune responses?
Which type of lymphocyte is responsible for cell-mediated immune responses?
Signup and view all the answers
Which system is used to classify cell surface molecules on lymphocytes in domestic animal species?
Which system is used to classify cell surface molecules on lymphocytes in domestic animal species?
Signup and view all the answers
What is the immunophenotype of a lymphocyte?
What is the immunophenotype of a lymphocyte?
Signup and view all the answers
Which type of lymphocyte expresses more antigen receptors on its surface?
Which type of lymphocyte expresses more antigen receptors on its surface?
Signup and view all the answers
Which type of lymphocyte is usually larger than T or B cells and may contain cytoplasmic granules?
Which type of lymphocyte is usually larger than T or B cells and may contain cytoplasmic granules?
Signup and view all the answers
Which lymphocyte subpopulation can be identified by their characteristic cell surface molecules and behavior?
Which lymphocyte subpopulation can be identified by their characteristic cell surface molecules and behavior?
Signup and view all the answers
