Microbiology and Immunology 3300B Study Guide - Final Guide: Macrophage, Eosinophil, Pus

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Immune Study Notes Lecture 3
1. Where are most immune cells?
Within the circulation.
Where are immune cells made?
In the bone marrow; but in children in the yolk sac then liver then bone marrow.
What are immune cells found?
-tissue, blood, lymph, peripheral organs (lymphnodes/tonsils/adrenoid/spleen),
central lymphoid organs (thymus and bone marrow)
What is Bone Marrow?
Spongy connective tissue of the long bones contains immune cells, red blood cells,
fat and connective tissue
Explain the blood/lymph system.
Circulation occurs, blood lets fluid seep out of the capillaries into tissues gathers
with antigens. Antigens/fluid from lymphatic tissues put into lymphatic vesicles and
brought to peripheral organs for antigen presentation then put back into the
circulatory system.
What is the composition of the blood?
Plasma, buffer and red blood cells.
In the buffer PMN polymorphonuclear cells: neutrophils, eosonophils and
basophils. Mononuclear cells = lymphocyts and monocytes
What is hematopoesis?
Progenitor cell is pluripotent and can differentiate into different types of cells.
Capable of infinite proliferation although they stop because you only need so many.
2. What are the lymphoid cells?
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Document Summary

In the bone marrow; but in children in the yolk sac then liver then bone marrow. Tissue, blood, lymph, peripheral organs (lymphnodes/tonsils/adrenoid/spleen), central lymphoid organs (thymus and bone marrow) Spongy connective tissue of the long bones contains immune cells, red blood cells, fat and connective tissue. Circulation occurs, blood lets fluid seep out of the capillaries into tissues gathers with antigens. Antigens/fluid from lymphatic tissues put into lymphatic vesicles and brought to peripheral organs for antigen presentation then put back into the circulatory system. In the buffer pmn polymorphonuclear cells: neutrophils, eosonophils and basophils. Progenitor cell is pluripotent and can differentiate into different types of cells. B/t cells a part of the adaptive immunity see antigen and start producing antibodys. T cells need to be presented with an antigen to start immune response. Cd8+ = apoptosis going to kill if it doesn"t have the right amount of mhc complex.

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