Question:

In which one of the following pairs the two items mean one and the same thing

Updated On: Jul 5, 2022
  • Malleus?anvil
  • SA node?pacemaker
  • Leucoytes?lymphocytes
  • Haemophilia?blood cancer
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The Correct Option is B

Solution and Explanation

SA node is also known as pacemaker of heart. The middle ear of human contains a remarkable chain of three tinny bones or ossicles, known as the malleus (hammer), incus (anvil) and stapes (stirrup). Leucocytes : Red Blood Cells (RBCs). Lymphocytes : White Blood Cells (WBCs). Haemopilia : X-linked disease. Blood cancer : Leukaemia.
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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;

  1. Plasma
  2. Red Blood Cells
  3. White Blood Cells
  4. 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