The lymphatic system includes a varied distribution of lymph nodes. Approximately how many lymph nodes are in the body? 10-50 1,000-10,000 80-120 500-600
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Lymph nodes are small, bean-shaped structures that filter lymph fluid and are distributed throughout the body, particularly in the neck, armpits, chest, abdomen, and groin. Show more…
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Lymphatic System spleen peyer's patches B cells groin thoracic duct lymphokinetic factors tissue fluid 3 liters valves less proteins large particles, cells lymph capillaries pharyngeal efferent, hilum lacteals thymosin chyle 1-20mm open circuit axillary right lymphatic duct respiratory & skeletal muscle pumps fluid, osmotic balance, defense, fat transport I. Functions of Lymphatic System (slides 3-4) 79. The functions of the lymphatic system include:_ II. Formation & Composition of Lymph (slides 4-9) 80. Lymph is formed from 81. Both lymph and interstitial fluid have relatively _______ protein than plasma 82. Milky lymph that is high in fat content is called III. Fluid & Osmotic Balance (slides 8-11) 83. Return of leaked ___ to CVS helps restore osmotic balance 84. The high degree of permeability of lymphatic capillaries allows ____ to easily enter the capillary 85. The lymphatic system returns about ___ of lymph back to the blood each day IV. Lymphatic Vessels (slides 12-26) 86. ___ originate in tissues as microscopic, blind-end vessels. 87. Lymph vessels have more ____ than veins that aid in one-way flow of lymph. 88. Lymphatic capillaries that transport chyle are called 89. The cisterna chyli is part of V. Lymph Flow & Lymphokinetic factors (slides 27-30) 90. The lymphatic system, unlike the circulatory system, is an ____ 91. Lymph flow is aided by _____ similar to "blood in veins" 92. Lymph from the upper right quadrant drains into the ____ 93. Activities that result in central movement, or flow, of lymph are called VI. Lymph Nodes, Filtration & Defense (slides 32-41) 94. Lymph nodes may range from ____ in diameter. 95. _____ vessels transport lymph out of lymph nodes exiting at a small depression on node called ____ 96. The inguinal lymph nodes are located in the 97. Lymph node follicles are rich in these white blood cells 98. The majority of lymph from the breast enters the ____ lymph nodes. VII. Lymphoid Organs, Tissue (slides 42-55) 99. Tonsils that are called adenoids when they become swollen. 100. Isolated nodules of lymphatic tissue in the intestinal wall. 101. Hormone enables lymphocytes to develop into mature T cells 102. This organ destroys imperfect platelets, worn out RBCs and acts as a reservoir for blood.
Adi S.
76. The thymus gland is a primary organ of the lymphatic system with an epithelial framework structure similar to that of the spleen. 77. The reason the red pulp of the spleen is red is that it contains a great deal of blood. 78. Peyer patches are isolated nodules of lymphatic tissue in the intestinal wall. 79. The highest concentration of protein in the lymphatic system is found in the cisterna chyli. 80. About half the lymph that passes through the thoracic duct comes from the liver and the small intestine. 81. The terms lacteal and Peyer patches refer to the same structures in the intestines. 82. The larger lymph vessels are made up of three layers of tissue just as the veins and arteries are in the circulatory system. 83. Like most other structures in the body, lymph vessels have the capacity for repair or regeneration when damaged. 84. Lymph from the lips, nose, and teeth drain through the submental and submandibular lymph nodes. 85. Lymph nodes provide both biological and mechanical filtration. 86. The lymph with the highest concentration of protein is found in the right lymphatic duct. 87. Most of the protein in lymph comes from the small intestine and the liver. 88. The right lymphatic duct originates as the cisterna chyli. 89. Small aggregates on lymphatic tissue are found throughout the body, especially in connective and muscle tissue. 90. Palatine tonsils are called adenoids when they become swollen. 91. The tubal tonsils are located near the base of the eustachian tubes. 92. Although the thymus is at its largest size at puberty, its largest size relative to the rest of the body occurs at age two. 93. There can be as many as three vessels that carry lymph back to the right subclavian vein.
Madhur L.
List the regions of the body containing many lymph nodes:
James K.
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