What is the life span of the platelets?
Important Questions on The Circulatory System
Given below is a simple diagram of the circulation of blood in a mammal showing the main blood vessels, the heart, lungs and body tissues. The blood vessels, labelled 6, contain deoxygenated blood and the valve leading to it has three semi-lunar pockets.
Name the blood vessels or organs marked by numbers 1 to 8.
Draw a sectional view of the internal structure of the human heart and label the following parts and name them:
(i) Vein which brings deoxygenated blood from the upper part of the body.
(ii) Blood vessel which carries oxygenated blood to the body parts.
(iii) Chamber which pumps deoxygenated blood to the lungs.
The figure given is cross-sections of blood vessels:
Mention two structural differences between A and B.
Study diagram and answer:
Name the blood vessels labelled 1, 3, 6 and 7.
Given below is a simple diagram of the circulation of blood in a mammal showing the main blood vessels, the heart, lungs and body tissues. The blood vessels, labelled 6, contain deoxygenated blood and the valve leading to it has three semi-lunar pockets:
What is diastole?
Diagram given below indicates one phase of the heart contraction.
Name the phase and label the guidelines 1-6.
