Human Circulatory System
Important Questions on Human Circulatory System
The origin of the human heart is
Match the items given in Column I with those in Column II and select the correct option given below.
| Column I | Column II | ||
| A | Tricuspid valve | (i) | Between left atrium and left ventricle |
| B | Bicuspid valve | (ii) | Between right ventricle and pulmonary artery |
| C | Semilunar valve | (iii) | Between right atrium and right ventricle |
'Bundle of His' is a part of which one of the following organs in humans?
Artery can be differentiated from vein, as
The apex of the heart
Arteries are best defined as the vessels which
Right atrium receives blood from:
Given below are the figures of blood vessels. Identify them and select the correct option.
Which of the following chambers of the heart has the thickest muscular wall?
In the following diagram of T.S. of Artery, the region marked 'X' is
The main difference in the structure of arteries and veins is :-
Which of the following vertebrate organ/s receives only oxygenated blood?
a. Heart
b. Lungs
c. Liver
d. Spleen
e. Gills
The blood flow through the human heart is visualised by
The closed circulatory system is found in
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
A vein possesses a large lumen because
