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प्रश्न
Describe the functions of the: Heart
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उत्तर
The heart is a muscular organ that pumps blood to all the cells in our body through a network of blood vessels. It pumps the blood and hence helps in circulating oxygen and nutrients to all body parts. The heart pumps deoxygenated blood to the lungs and oxygenated blood to the rest of the body
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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.
The diagram given below represents a section of the human heart. Answer the questions that follow:
- Which parts of heart are in the diastolic phase? Give a reason to support your answer.
- Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
- What causes the heart sounds ‘LUBB’ and ‘DUP’?
- Name the blood vessels that supply oxygenated blood to the heart muscles.
- Draw neat labelled diagrams of a cross section of an artery and a vein.
The nearest organ to which the heart supplies oxygenated blood is:
What are the average values of blood pressure in a normal adult human?
A blood vessel which has small lumen and thick wall is ______.
When are the sounds "LUBB" and "DUP" produced respectively during heart beat?
Given below is a highly schematic diagram of the human blood circulatory system.
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- Which part (state the number) represents the heart? Give reason in support of your answer.
- Which numbers represent the following, respectively?
Aorta Superior vena cava Hepatic portal vein Renal Vein Pulmonary artery Stomach
How many litres of blood does an adult human body have?
Why is circulatory system also known as transport system?
Name the Following
Oxygen is transported by the blood in the form of
