MLS 301 Lecture Notes - Lecture 8: Thymus, Helminths, Blood Film
Document Summary
Objectives: upon completion of this lesson, the student will be able to: Differentiate the leukopoietic maturation states in the proper chronological order comparing each stage based on morphological characteristics. Explain the tissues involved in lymphopoiesis and the anatomical structure for each (bone marrow and the thymus). Takes place primarily in the lymphoid tissue. Results in immunocompetent t and b lymphocytes: antigen-dependent. Begins with the recognition of and interaction with antigens. Specific antigen receptors on the surface of immunocompetent b and t lymphocytes will result in the formation of effector t and b lymphocytes. Lymphoblast: 10-18, nucleus is lacy, fine and more smudge, tdt. Prolymphocyte: difficult to distinguish in normal bone marrow, smaller than blast, chromatin is clumped, light blue and agranular cytoplasm lymphocyte. Describe the distinctive features used to characterize developing leukocytes including the cell size, cytoplasmic and nuclear features. Describe the functions of each of the following leukocytes:
