Tag: human system

Questions Related to human system

Lymph lacks

  1. WBC

  2. RBC

  3. Tissue fluid

  4. All of the above


Correct Option: B
Explanation:

The lymphatic system returns excess interstitial fluid to the blood. Of the fluid that leaves the capillary, about 90 percent is returned. The 10 percent that does not return becomes part of the interstitial fluid that surrounds the tissue cells. It helps in exchange of gasses, nutrients and removes the metabolic waste. It is devoid of RBC. So, the correct answer is option B.

Lymph contains ........... proteins than plasma.

  1. Less

  2. More

  3. Equal

  4. None of the above


Correct Option: A
Explanation:

The lymphatic system returns excess interstitial fluid to the blood. Of the fluid that leaves the capillary, about 90 percent is returned. The 10 percent that does not return becomes part of the interstitial fluid that surrounds the tissue cells. It helps in exchange of gasses, nutrients and removes the metabolic waste. It is devoid of RBC. It contains fewer proteins than plasma and lacks RBC.  So, the correct answer is option A.

The lymph is ....... in nature.

  1. Solid

  2. Liquid

  3. Semi-solid

  4. Gas


Correct Option: B
Explanation:

Lymph is watery clear fluid or colorless because it lacks red blood cells (erythrocytes). It consists of plasma and white blood cells (leucocytes) only.

So, the correct answer is option B.

Lymph provides immunity because

  1. It has lymphocytes

  2. It has erythrocytes

  3. It has thromobocytes

  4. None of the above


Correct Option: A
Explanation:

WBCs are divided into leucocytes and lymphocytes. Lymphocytes are further divided into macrophages and monocytes. These cells help in the engulfment of any foreign particles inhaled or ingested by our body. Lymphocytes are considered as soldier cells of our body. A Large proportion of these cells is found in the lymphatic system wherein the lymph is present. Thus lymph provides immunity. So, the correct answer is option A.

Which of the following acts as middle man?

  1. W.B.C.

  2. Plasma

  3. Blood

  4. Lymph


Correct Option: D
Explanation:
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. It has the same mineral distribution as that in plasma. Exchange of nutrients, gases, etc., between the blood and the cells, always occur through this 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. Hence lymph acts as the middleman.
So, the correct answer is 'Lymph'.