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प्रश्न
Name the following:
The smallest common blood vessels formed by the union of capillaries.
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उत्तर
Venule
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संबंधित प्रश्न
Give biological reasons for the following statements:
The left ventricle of the heart has a thicker wall than the right ventricle.
Given alongside is a diagram of human heart showing its internal structures. Label the parts marked 1 to 6, and answer the following questions.
- Which type of blood is carried by the blood vessel marked 2?
- Name the main artery which takes the blood from heart to different parts of the body?
- Which chamber of the heart receives deoxygenated blood from the body?
Name the following:
The phase of the cardiac cycle in which the auricles contract.
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
The valve which prevents back flow of blood in the veins and lymph vessels ______.
what is Venule?
What is the function of tonsils?
Given diagram shows a simple diagram of the circulation of blood in a mamma showing the
main blood vessels, the heart, lungs and body tissues. The blood vessel, labelled 6, contains
deoxygenated blood and the valve leading to it has three semi-lunar pockets.
(a) Name the blood vessels and organs marked by numbers 1 to 8.
(b) What is meant by the term ‘double circulation’ of blood in mammals?
(c) what is diastole?
[There is an “error” in the diagram. According to the usual practice the pulmonary (lung)
circulation is shown upward and the systemic downward, but here it is reversed].
State the Location: Spleen
______ WBCs are present per mm3 of blood.
