Tag: human lymphatic system
Questions Related to human lymphatic system
Which of the following destroys worn out RBCs ?
a) Liver
b) Kidney
c) Spleen
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a, b
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a, c
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b, c
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All of the above
Spleen's main function is to act as a filter for blood. It recognizes and removes old, malformed, or damaged red blood cells. It destroys worn out RBC (sharing this function with liver)
Lymph helps is the absorption of
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Carbohydrate
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Proteins
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Fats
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All of the above
Lymph is an integral part of the circulatory system which plays an important role in the defensive mechanism. It does not absorb vitamins and minerals but fats from the intestinal villi.
Which of the following has the similar composition as lymph?
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Red blood cells
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Blood plasma
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White blood cells
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Nutrients
Lymph is the interstitial fluid present in the tissue space and it has accumulated due to the pressure difference between the arteries and the veins. It has a composition similar to that of the blood plasma, that it contains small solutes, water ions, proteins lymphocytes etc.
Which of the following has the similarities with the lymph?
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Red blood cells
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Blood plasma
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White blood cells
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Nutrients
Since the lymph is derived from the interstitial fluid, its composition continually changes as the blood and the surrounding cells continually exchange substances with the interstitial fluid. It is generally similar to blood plasma, which is the fluid component of blood. Lymph returns proteins and excess interstitial fluid to the blood stream. Lymph may pick up bacteria and bring them to lymph nodes, where they are destroyed. Metastatic cancer cells can also be transported via lymph. Lymph also transports fats from the digestive system (beginning in the lacteals) to the blood via chylomicrons.
Which of the following molecule enters into the lymph from intestine?
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Fat molecules
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Glycerols
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Plasma protein
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None of the above
- Chyle is the liquid form of chyme that enters lymph vessels from the small intestine. It is rich in fats, these fats along with lymph often appear as milk. The fat molecules from the intestine will make their way into the lymph.
- Glycerols also called as glycerine is a colorless, odorless substance. It is found as an intermediate in metabolic pathways.
- Plasma protein is the proteins that make-up blood plasma. They help in maintaining osmotic pressure, clotting, and transport of certain lipids, enzymes and hormones.
Lymph transports white blood cells from
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Spleen
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Pancreas
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Lymph nodes
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liver
A. Spleen also referred to as the graveyard of RBCs removes worn-out RBCs and fights infections. It is a part of the lymphatic system
Lymph is more similar to
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Blood
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Interstitial fluid
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Both A and B
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None of the above
Interstitial fluid is present in the extracellular matrix by the difference in the pressure of the arteries and veins. This interstitial fluid forms lymph that flows in the lymphatic capillaries. These are similar in their composition of proteins, water, and the lymphocytes. Blood flows in the blood vessels and has more proteins than interstitial fluid and lymph. Blood also has the RBCs that are absent in interstitial fluid and lymph.
Which of the following removes debris from cells?
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Blood
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Lymph
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Interstitial fluid
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All of the above
Lymph is responsible for removal of
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Antigens
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Toxins
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Interstitial fluid
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All of the above
- Antigens are foreign particles that stimulate immune response activating the immune system and WBCs. Antigens are carried by lymph to lymph nodes where they are taken care by lymphocytes.
- Toxins are metabolic wastes or substances secreted by bacteria, viruses or fungi which can be harmful and have to be excreted from the system. Toxins in the interstitial fluid are removed by lymph.
- Interstitial fluid is the extracellular fluid in which cells are bathed. They contain metabolic wastes and CO2 which are absorbed into venules. The left out interstitial fluid is removed by lymph vessels.
Lymph is colourless because
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WBC are absent
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WBC are present
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Platelet is absent
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RBC are absent
Lymph is watery clear fluid or colorless because it lacks red blood cells (erythrocytes). It consists of plasma and white blood cells (leucocytes) only.