Question:

Given below are two statements:
Statement I: The coagulum is formed of a network of threads called thrombins.
Statement II: Spleen is the graveyard of erythrocytes.
In the light of the above statements, choose the most appropriate answer from the options given below:

Updated On: May 2, 2025

Both statement I and Statement II are correct
Both statement I and Statement II are incorrect
Statement I is correct but statement II is incorrect
Statement I is incorrect but statement II is correct

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The Correct Option is D

Solution and Explanation

To understand which statements are correct, let's analyze each one:

Statement I: "The coagulum is formed of a network of threads called thrombins." This statement is incorrect. In the coagulation process, thrombins are not threads. Thrombin is an enzyme that converts fibrinogen into fibrin, which forms the network of threads to create the coagulum. Thus, the threads are fibrins, not thrombins.

Statement II: "Spleen is the graveyard of erythrocytes." This statement is correct. The spleen is known as the graveyard of red blood cells (erythrocytes) because it is the organ responsible for removing old and damaged erythrocytes from circulation.

Conclusion: Based on the evaluation, Statement I is incorrect but Statement II is correct. Therefore, the correct answer from the options provided is: Statement I is incorrect but Statement II is correct.

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List I	List II
A	P wave	I	Heart muscles are electrically silent.
B	QRS complex	II	Depolarisation of ventricles.
C	T wave	III	Depolarisation of atria.
D	T-P gap	IV	Repolarisation of ventricles.

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Concepts Used:

Body Fluids and Circulation

Liquid substances in the animal or human body are known as body fluids. The human body consists of about 60-67% body fluids. The chief components of the human body fluids are blood and lymph. Blood comprises a matrix called plasma with blood corpuscles floating in it. The blood cells are white blood cells, red blood cells, and platelets. Lymph consists of lymph cells.

Read More: Body Fluids and Circulation

Types of Body Fluids:

The different types of body fluids:

Blood

The main components of blood involve;

Plasma
Red Blood Cells
White Blood Cells
Platelets

Lymph

A colorless fluid present in the interstitial tissues is lymph. It circulates all over the lymphatic system. It can be described as blood without the RBCs. The exchange of hormones, nutrients, and gases occurs via this fluid. It contains lymphocytes that play a major function in the immune responses of the body.

The movement of blood across the vessels of the body that carries nutrients and gases along with it and removes waste from the different parts of the body is circulation.

Types of Circulatory Systems:

There are two types of circulatory systems:

Open Circulatory system
Closed circulatory system

Given below are two statements: Statement I: The coagulum is formed of a network of threads called thrombins. Statement II: Spleen is the graveyard of erythrocytes. In the light of the above statements, choose the most appropriate answer from the options given below: