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Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin
Edition 1ISBN: 978-0135104248Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin
Edition 1ISBN: 978-0135104248 Exercise 2
The primary lymphoid organs are the
A) spleen, lymph node, and tonsil
B) thymus, bursa of Fabricius, and bone marrow
C) thoracic duct and vena cava
D) polymorphonuclear leukocytes
A) spleen, lymph node, and tonsil
B) thymus, bursa of Fabricius, and bone marrow
C) thoracic duct and vena cava
D) polymorphonuclear leukocytes
Explanation
Verified
Verified
The lymphatic system is the constituent of the circulatory system, and is an important immune system part. The lymphatic system comprises of a conducting lymphatic vessel network, lymphatic organs, and the circulating lymph. The central or primary lymphoid organs produce lymphocytes from undeveloped progenitor cells.
Peripheral or secondary lymphoid organs include spleen, and the lymph nodes, and initiate an adaptive immune response and maintain mature naive lymphocytes. The secondary lymphoid organs are the locations of activation of lymphocyte by the antigens. The lymphoid follicles in tonsils and the lymph nodes exemplify peripheral lymphoid organs.
Thoracic duct also known as the alimentary duct. In this duct, a large part of the body's lymph is accumulated, which is then discharged into the bloodstream. Vena cava refers to a big vein, which carries deoxygenated blood into the heart.
A polymorphonuclear leukocyte is a kind of white blood cell, which possess granules with enzymes that are discharged at the time of allergic reactions, infections, and asthma. The basophils, neutrophils, and eosinophils are polymorphonuclear leukocytes.
Hence, the options a, c and d are incorrect.
Primary lymphoid organs are the site where lymphocytes are created and developed. They provide a surrounding for the stem cells to mature and differentiate into T and B cells. The thymus gland and the red bone marrow are the two primary lymphoid organs.
Both B cells and T cells are formed in the bone marrow, from where they move to thymus for maturation. The bursa of Fabricus is a specialized organ in birds, which is the site of hematopoiesis. It is an important part of the immune system, as it plays an important role of B cell development in birds.
Hence, the correct answer is option
.
Peripheral or secondary lymphoid organs include spleen, and the lymph nodes, and initiate an adaptive immune response and maintain mature naive lymphocytes. The secondary lymphoid organs are the locations of activation of lymphocyte by the antigens. The lymphoid follicles in tonsils and the lymph nodes exemplify peripheral lymphoid organs.
Thoracic duct also known as the alimentary duct. In this duct, a large part of the body's lymph is accumulated, which is then discharged into the bloodstream. Vena cava refers to a big vein, which carries deoxygenated blood into the heart.
A polymorphonuclear leukocyte is a kind of white blood cell, which possess granules with enzymes that are discharged at the time of allergic reactions, infections, and asthma. The basophils, neutrophils, and eosinophils are polymorphonuclear leukocytes.
Hence, the options a, c and d are incorrect.
Primary lymphoid organs are the site where lymphocytes are created and developed. They provide a surrounding for the stem cells to mature and differentiate into T and B cells. The thymus gland and the red bone marrow are the two primary lymphoid organs.
Both B cells and T cells are formed in the bone marrow, from where they move to thymus for maturation. The bursa of Fabricus is a specialized organ in birds, which is the site of hematopoiesis. It is an important part of the immune system, as it plays an important role of B cell development in birds.
Hence, the correct answer is option
.
Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin
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