Question

Which one is called the graveyard of RBCs?

• A. Liver
• B. Kidney
• C. Heart
• D. Spleen

Answer 1

The correct option is D

Spleen

The correct option is option D.

The explanation for the correct option:

1. Red platelets, also known as erythrocytes,
2. They are a component of blood.
3. They are continuously produced in our bone marrow.
4. RBCs have a lifespan of about 100-120 days.
5. The spleen removes them from the circulatory system after they have served their purpose.
6. Spleen is known as the RBC graveyard.
7. RBCs are destroyed in the spleen.
8. In one second, approximately 2.5 million RBCs are destroyed.

The explanation for the incorrect options:

Option A:

1. The liver is the largest gland in the human body.
2. Different sizes of the liver can be seen in carnivorous, omnivorous, and herbivorous animals.
3. This is due to differences in metabolism.
4. Excess glucose in the blood is converted to glycogen.
5. The glycogen is stored in the liver.
6. Liver cells deactivate toxins and protect our bodies.
7. It stores vitamin A.

Option B:

1. A human has a pair of kidneys.
2. They are major excretory organs.
3. It purifies the blood and forms urine.
4. The kidney also secretes the hormone erythropoietin

Option C:

1. The heart is the circulatory organ.
2. It is the major pumping organ that circulates blood throughout the body.
3. In the heart double circulation occurs.
4. The heart regulates blood pressure.

Final answer: Spleen is called the graveyard of RBCs.