Question
Biology Question on body fluids and circulation
In which one of the following pairs the two items mean one and the same thing
A
Malleus?anvil
B
SA node?pacemaker
C
Leucoytes?lymphocytes
D
Haemophilia?blood cancer
Answer
SA node?pacemaker
Explanation
Solution
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.