Lymph Capillary Tissue Space (Interstitium) Blood Capillary Arterial End Venous End Water Proteins Oxygen Dust Particles Bacteria 80-90 % of fluid returns to blood stream 1.5-3 L / 24 hrs
Lymph Capillary Tissue Space (Interstitium) Blood Capillary Arterial End Venous End 1.5-3 L / 24 hrs "An adult who weighs 160 pounds has about 5 quarts (4.7 liters) of blood."
Lymph Capillary Tissue Space (Interstitium) Blood Capillary Arterial End Venous End Fluid component Blood Capillary = Plasma Tissue Space = Interstitial Fluid Lymph Capillary = Lymph
COMPONENTS OF THE LYMPHATIC SYSTEM I. Vessels A. Capillaries 1. Not distributed evenly throughout the body a. Dense meshwork beneath the surfaces of the body b. Sparse in muscle, bone and fascia c. Absent in avascular tissues B. Small lymphatic vessels Contain numerous valves C. Large lymphatic vessels (Trunks or Ducts) Contain numerous valves
A. Organized accumulation of lymphoid tissue
B. Scattered along lymphatic vessels
C. Vary in size
D. Basic concept of flow of lymph through lymph nodes
E. Function as filters of lymph
F. As a general rule, lymph flows through at least one lymph node before it is returned to the circulation
Aggregations of lymphoid tissue
A. Peyer’s patches ( in small intestines)
C. Bone marrow
IV. Lymphoid organs
V. Circulating T and B lymphocytes
Inguinal nodes Iliac nodes
Pink Area: Lymph drainage via the right lymphatic duct Gray Area: Lymph drainage via the thoracic duct
Intestinal Trunk Left Lumbar Trunk Thoracic Duct Right Lumbar Trunk
Left Jugular Trunk Left Mediastinal Trunk Thoracic Duct Left Subclavian Trunk
Right Mediastinal Trunk Right Lymphatic Duct Right Jugular Trunk Right Subclavian Trunk
Lymphadenectomy - Removal of a lymph node.
Lymphadenopathy - Enlarged, sometimes tender, lymph nodes.
Lymphadenitis - Enlarged, tender, and inflamed lymph nodes resulting from an infection
Lymphangioma - A benign tumor of the lymphatic vessels.
Lymphangitis - Inflammation of the lymphatic vessels.
Lymphedema - accumulation of lymph fluid producing subcutaneous tissue swelling.
Lymphoma - Any tumor composed of lymphatic tissue
Lymphostasis - A lymph flow stoppage.
Splenomegaly - Enlarged spleen
Elephantiasis - Long-standing edema of one or both lower extremities, and sometimes of the arms or other body parts, that is due to lymphatic obstruction.
Medical Terminology Associated with the Lymphatic System