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Chapter-05 Lymphatic System

BOOK TITLE: Basics in Human Anatomy for BSc Paramedical Courses

Author
1. Ranganath Priya
2. N Leelavathy
ISBN
9789352704934
DOI
10.5005/jp/books/18066_6
Edition
2/e
Publishing Year
2018
Pages
7
Author Affiliations
1. St John’s Medical College, Bengaluru, India, Bangalore Medical College and Research Institute, Bengaluru, Karnataka, India
2. St John’s Medical College, Bengaluru, India, Sapthagiri Institute of Medical Sciences and Research Center, Bengaluru, Karnataka, India
Chapter keywords
Lymphatic system, lymphatic organ, lymphoid tissue, alimentary tract, respiratory tract, lymph node, blood vessel, thymus, thoracic duct

Abstract

The objective of this chapter is to introduce the lymphatic system. The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body. About 80-90% of the tissue fluid formed at the arterial end of the capillary bed returns to the blood circulation through the venous ends of capillaries and the pre-capillary venules. The remaining fluid is transported to the venous system through lymphatic system which consists of closed system of vessels which ramify in the tissue spaces in and around the blood capillaries. It comprises of lymphatics, lymphatic organs (lymph node, thymus, spleen, and tonsil) and other collection of lymphoid tissues in the walls of alimentary tract, respiratory tract. In this chapter, short essay type questions are also provided.

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