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Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Lymph is more similar to

  1. Blood

  2. Interstitial fluid

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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. 

Hence, the correct answer is 'Interstitial fluid'.

Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Which of the following removes debris from cells?

  1. Blood

  2. Lymph

  3. Interstitial fluid

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The lymphatic system can be compared with "hazardous waste disposal" because it transports waste products out of the body. These include, for example, proteins, metabolic breakdown products, inflammatory products or fat from the abdominal cavity. The lymphatic system runs alongside the blood vessels and covers our entire body like a net. Lymph fluid normally flows through the network of lymph vessels that connect to a group of lymph nodes. The nodes act as a filter, destroying or trapping anything harmful that the body doesn’t need. The lymph nodes contain white blood cells (lymphocytes), which attack and break down bacteria, viruses, damaged cells or cancer cells. Waste products and the destroyed bacteria are then carried in the lymph fluid back into the bloodstream and are removed from the body with other body waste.

So, the correct answer is 'Lymph '.
Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Lymph is responsible for removal of

  1. Antigens

  2. Toxins

  3. Interstitial fluid

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • 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.
So, the correct answer is "All of the above".

Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

The main difference in the blood and lymph is

  1. Absence of RBC

  2. Absence of WBC

  3. Number of WBC is less in blood

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood is a special connective tissue consisting of a fluid matrix, plasma, and formed elements. As the blood passes through the capillaries in tissues, some water along with many small water-soluble substances move out into the spaces between the cells of tissues leaving the larger proteins and most of the formed elements (RBC, WBC and Platelets) in the blood vessels. This fluid released out is called the interstitial fluid or tissue fluid. An elaborate network of vessels called the lymphatic system collects this fluid and drains it back to the major veins. The fluid present in the lymphatic system is called the lymph. WBC are present in lymph. Hence the main difference in blood and lymph is the absence of RBC.

So, the correct answer is 'Absence of RBC'.

Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Spaces surrounding the trabeculae of spleen are composed of.

  1. White pulp

  2. Red pulp

  3. White pulp and red pulp

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The spleen contains white pulp (lymphoid tissue) and red pulp (vascular tissue). The trabeculae provide structural support, and the spaces between them are occupied by these two types of pulp.