Histology HS Quiz
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The cells forming the medullary cords of the lymph node are:
A. Granulocytes, macrophages, tissue basophils
B. B-lymphocytes, macrophages, plasma cells
C. T-lymphocytes, macrophages
D. Erythrocytes, platelets
E. Erythroblasts, myeloblasts, monoblasts
The hematothymic barrier is located in:
A. Cortex
B. Medulla
C. Both cortex and medulla
D. Organ capsule
E. There is no such barrier in the thymus
The stroma of the thymus is:
A. Loose connective tissue
B. Dense connective tissue
C. Reticulo-epithelium
D. Adipose tissue
E. Dense connective tissue
Morphological signs of age-related involution of the thymus are:
A. Proliferation of epithelial tissue
B. Decrease in lymphocytes and development of adipose, connective tissue
C. Increase in the number of lymphocytes
D. Accumulation of tissue basophils
E. Proliferation of muscle tissue
Memory B-cells are formed in:
A. Paracortical zones
B. Periarterial zones
C. Medullary cords
D. Germinal centers
E. Red pulp
The thymus-dependent zone (T-zone) of the spleen is:
A. Periarterial zone
B. Germinal center
C. Mantle zone
D. Marginal zone
E. Medulla
In the follicles of the lymph node, T-lymphocytes inhabit:
A. Germinal center
B. Mantle zone
C. Marginal zone
D. Paracortical zone
E. Capsule
T- and B-lymphocytes enter the tissue of the lymph node from:
A. Arterioles
B. Hemocapillaries
C. Postcapillary venules
D. Afferent lymphatic vessels
E. Lymphatic capillaries
The white pulp of the spleen is formed by:
A. Lymphatic follicles
B. Reticulocytes and erythrocytes
C. Capsule with trabeculae
D. Paracortical zone
E. Medullary cords and sinuses
Antigen-independent differentiation of T-lymphocytes occurs in:
A. Thymus
B. Lymph nodes
C. Spleen
D. Palatine tonsils
E. Peripheral lymphoid organs
Interdigitating cells in the lymph node are located in:
A. Paracortical zone
B. Sinuses
C. Hilum area
D. Medullary cords
E. Lymphatic follicles
The cellular composition in the reactive centers of lymph node follicles is:
A. Erythroblasts, myeloblasts, monoblasts
B. Erythroblasts, platelets
C. B-lymphocytes, lymphoblasts, dendritic macrophages
D. T-lymphocytes, lymphoblasts, interdigitating macrophages
E. Granulocytes, macrophages, tissue basophils
The hematopoietic organ containing red and white pulp is:
A. Red bone marrow
B. Lymph nodes
C. Tonsils
D. Spleen
E. Thymus
The hematopoietic organ whose lymphatic follicles contain a central artery is:
A. Thymus
B. Spleen
C. Tonsil
D. Lymph nodes
E. Appendix
Effector cells in cellular immunity are:
A. B-lymphocytes
B. T-lymphocytes
C. Cytotoxic T-suppressors
D. T-helpers
E. Plasma cells