Name the blood cells,whose reduction in numbe | vedclass

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(D) : Thrombocytes are also known as blood platelets. They are minute,disc-shaped cell fragments found in mammalian blood. They are formed as fragment

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Thrombocytes

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(D) : Thrombocytes are also known as blood platelets. They are minute,disc-shaped cell fragments found in mammalian blood. They are formed as fragments of larger cells called megakaryocytes in the red bone marrow and lack a nucleus. They play a crucial role in blood clotting by releasing substances like thromboxane $A_2$,serotonin,and other clotting factors. These chemicals initiate a chain of events that form a plug at the site of injury,preventing excessive blood loss. $A$ significant reduction in their number leads to clotting disorders,resulting in excessive bleeding from the body.

Column $I$	Column $II$ $\&$ $III$
$I$. Erythrocytes	$D$. Enucleated,biconcave circular in shape; $N$. Transport of gases $O_2$ and $CO_2$.
$II$. Neutrophils	$A$. Spherical large cells,nucleus with many lobes; $O$. Phagocytic in function.
$III$. Lymphocytes	$C$. Spherical nucleus,agranular cytoplasm; $M$. Humoral and cell-mediated immunity.
$IV$. Thrombocytes	$B$. Cellular fragments small,oval shaped; $L$. Clotting of blood.

Name the blood cells,whose reduction in number can cause clotting disorder,leading to excessive loss of blood from the body.

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