Reticular fibers of collagen tissues are present in all of the following except:
Thymus
Spleen
Bone marrow
Lymph node
Ans: A. ThymusReticular fibers of collagen tissues are present in Spleen, Bone marrow & Lymph node but not in thymus.Reticulin:Type of fiber in connective tissue.Composed of type III collagen.Secreted by reticular cells.Reticular fibers crosslink to form a fine meshwork.Acts as a suppoing mesh in soft tissues such as liver, bone marrow & tissues and organs of lymphatic system.