Biology - Body Fluids and Circulation Question with Solution | TestHub
Given below are two statements about erythrocytes.
Statement (I): In the human foetus, the liver and spleen act as erythropoietic organs.
Statement (II): The old and worn out RBCs are destroyed in the liver and spleen and spleen is called the graveyard of RBC.
In light of the above statements, choose themost appropriateanswer from the options given below.
Options:
Answer:
Solution:
Statement (I) is correct because during the embryonic and foetal stages of development, erythropoiesis (formation of RBCs) primarily occurs in the yolk sac, followed by the liver and spleen. In adults, it occurs in the red bone marrow.
Statement (II) is correct because erythrocytes have an average life span of about days, after which the old and worn-out RBCs are destroyed by macrophages present in the liver and spleen. The spleen is specifically referred to as the graveyard of RBCs.
Therefore, both Statement (I) and Statement (II) are correct.
Answer: Both Statement (I) and Statement (II) are correct.
