Lymphatic System Overview

The lymphatic system is part of the ______ system

The lymphatic system comprises a large network of lymphatic vessels, lymph nodes, lymphatic or lymphoid ______

Lymph is a clear fluid that is carried back towards the ______ for re-circulation

There are 600 to 700 lymph nodes in the human body that filter the lymph before it returns to the ______ system

Lymph that leaves a lymph node is richer in ______ than blood plasma

Lymph does not normally contain any ______ cells

In humans, the thymus and bone marrow are the main key in immune function. All lymphocytes derive from stem cells in the ______.

Stem cells destined to become B lymphocytes remain in the bone marrow as they mature, while T cells migrate to the ______ to undergo further growth.

Mature B and T lymphocytes exit from the primary lymphoid organs and are transported via the bloodstream to the secondary lymphoid organs. Secondary lymphatic organs include lymph nodes, tonsils, spleen, appendix, and ______ patches.

The thymus is located in the upper thoracic cavity posterior to the sternum. It is divided into outer cortex and inner ______.

T lymphocytes mature in the ______.

In mammals, the primary organ for B-lymphocyte development is the ______.