Tag: lymph and tissue fluid

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

Lymph is colourless because

  1. WBC are absent

  2. WBC are present

  3. Haemoglobin is absent

  4. RBC are absent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Lymph is the part of the lymphatic system, which is a colourless watery fluid which contains lymphocytes and proteins.
  • They are colourless because they lack red blood cells. 
  • The red blood cells contain haemoglobin protein which gives a red colour to the blood. So, the correct answer is 'RBC are absent'.
Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Middle man of the body is

  1. Plasma

  2. Lymph

  3. WBC

  4. RBC
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Lymph is a mobile connective tissue and composed of white blood cells mostly lymphocytes, and, the lymph plasma. It is similar to blood but it has less proteins, calcium and phosphorus. Glucose level is high in lymph. It is formed in lymph nodes, liver, thymus, tonsils, spleen and peyers patches with liver being the largest producer. It acts as middle man of body. It transports oxygen, food materials, hormones etc. to body cells and brings metabolic wastes like carbon dioxide from the body cells to blood which are finally poured into the venous system. In this way, it mediates the exchange and hence, known as middle man of the body.
So, the correct answer is 'Lymph'.
Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Which one is called graveyard of RBC's?

  1. Liver

  2. Kidney

  3. Heart

  4. Spleen
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Spleen is called the graveyard of RBCs because after completion of lifespan, RBCs are destroyed in spleen where they are ingested by free macrophages. About 2.5 million of RBCs are destructed in one second. After ingestion of RBCs by macrophages, the haemoglobin is dissociated into haem and globin. Iron of haem is released which is further used in process of formation of blood. The haem is converted into bilirubin, a yellow or brown pigment.
So, the correct answer is 'Spleen'.
Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Which of the following is blood bank of the body or reservoir, where the blood is stored and can be mobilized?

  1. Heart

  2. Liver

  3. Bone marrow

  4. Spleen
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The spleen is an organ in the upper far left part of the abdomen, to the left of the stomach. It’s commonly fist-shaped, purple, and about 4 inches long.
It is known as the blood bank because its blood reserve can be valuable in case of hemorrhagic shocks. 
It acts as a filter for blood as part of the immune system. Old red blood cells are recycled in the spleen, and platelets and white blood cells are stored there. The spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis. Hence, the correct answer is option D.
Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Amount of blood which can be stored in spleen is

  1. 200 ml

  2. 100 ml

  3. 50 ml

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The spleen is the largest lymphoid organ which is located under the ribcage and above the stomach in the abdomen. On an average, an adult human body contains 5.6 liters of blood out of which nearly 200ml blood can be stored in the spleen and released in cases of hypovolemia(low blood volume) and hypoxia (low oxygen levels). 
So, the correct answer is ' 200ml '.

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

Choose the correct answer from the alternatives given.
The cells constituting walls of blood capillaries are known as:

  1. endothelial cells

  2. cords

  3. oxyntic cells

  4. plasma cells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The endothelial cells form a one-cell-thick walled layer called endothelium that lines all of our blood vessels such as arteries, arterioles, venules, veins, and capillaries. Smooth muscle cells layer beneath the endothelial cells. 

The primary function of endothelium is the maintenance of vessel wall permeability and regulating blood flow. 
So, the correct option is 'Endothelial cells'.

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

Cords of billroth are found in

  1. Liver

  2. Kidneys

  3. Spleen

  4. Tonsils
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Cords of Billroth (also known as splenic cords or red pulp cords) are found in the red pulp of the spleen between the sinusoids, consisting of fibrils and connective tissue cells with a large population of monocytes and macrophages. These cords contain half of the human body's monocytes as a reserve so that after tissue injury these monocytes can move in and aid locally sourced monocytes in wound healing.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which organ receives only oxygenated blood?

  1. Gill

  2. Spleen

  3. Lung

  4. Liver
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The splenic artery branches off from the aorta and the celiac trunk to deliver oxygenated blood to the spleen, while the splenic vein carries deoxygenated blood away from the spleen to the hepatic portal vein. 

Therefore, the correct answer is option B.