HSC 4555 Lecture Notes - Lecture 5: Lysis, Thymus, Monocyte

35 views3 pages
29 Apr 2016
School
Department
Course
Professor

Document Summary

The primary lymphoid organs are the thymus and bone marrow. T cells develop in the thymus, whereas b cells develop in the bone marrow. Mature lymphocytes then migrate to secondary lymphoid structures, including the spleen and lymph nodes. Blood cells are produced in the bone marrow in response to specific hematopoietic growth factors. Granulocytes (neutrophils, basophils, eosinophils) and monocytes (macrophages) are phagocytic cells that provide innate protection. Lymphocytes (b cells, t cells) are specific cells that react only to particular antigens. Nk cells are lymphocytes that lack t-cell and b- cell markers and function in innate immune responses. Other blood components produced by bone marrow are erythrocytes and platelets. Neutrophils are the most numerous wbcs in blood. A large storage pool lies in the bone marrow and can be mobilized in response to antigen. Neutrophils are the predominant wbc type in early infection. They migrate to the area by following chemotactic factors and perform phagocytic functions.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents