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प्रश्न
Fill in the blanks with suitable words given below:
The two lower chambers of the heart are called ______.
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उत्तर
The two lower chambers of the heart are called ventricles.
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संबंधित प्रश्न
Describe the function of the heart.
MULTIPLE CHOICE TYPE:
(Select the most appropriate option)
The valve present between the right atrium and the right ventricle is the
(a) tricuspid valve
(b) bicuspid valve
(c) semi-lunar valve
(d) mitral valve
Name the following:
The blood vessels which start from capillaries and end in capillaries.
Given below is a certain structure, write its chief functional activity.
Bone marrow - ______.
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
Fill in the blank:
______ carry pure blood.
Define the Circulatory system.
Complete the following sentence with appropriate word:
The membranous covering of the heart is _______.
The heart is covered by ______.
Given below are four statements regarding human blood circulatory system:-
- Arteries are thick walled and have narrow lumen as compared to veins.
- Angina is acute chest pain when the blood circulation to the brain is reduced.
- Persons with blood group AB can donate blood to any person with any blood group under ABO system.
- Calcium ions play a very important role in blood clotting.
Which two of the above statements are correct?
