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प्रश्न
What is meant by human circulatory system? Name the organs of the circulatory system in humans.
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उत्तर
The organ system that is responsible for the transport of materials inside the human body is known as the human circulatory system. In human beings, the organs of the circulatory system are the heart, arteries, veins, and capillaries.
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संबंधित प्रश्न
Give appropriate biological or technical terms for the following :
The complex consisting of a DNA strand and a core of histones
Name the following:
The phase of the cardiac cycle in which the auricles contract.
what is Lymph nodes?
Give any three differences between an artery and a vein
Fill in the blanks with suitable words given below:
The two lower chambers of the heart are called ______.
True or false:
People with blood group ‘O’ are called universal recipients
Write a short note on the human heart.
What are seen as greenish blue lines in our hands and legs?
Complete the following sentence with appropriate word:
Beside food, oxygen and waste materials, circulatory system transports ________ to various parts of the body.
Short answer question.
Write a note on blood plasma.
Blood is produced in the bone marrow.
Analogy
Lungs: Respiratory system:: _______: Circulatory system.
Agranulocytes are about ______ % of total WBCs.
______ WBCs are present per mm3 of blood.
Identify the CORRECT statement/s regarding blood clotting.
Assertion (A): RBCs help in the transport of respiratory gases.
Reason (R): The cytoplasm of RBCs contains the respiratory pigment Haemoglobin.
______ is an agranulocyte.
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?
Name the following:
The structure that holds the heart valves in position.
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
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- Label the parts 1 and 4 indicated in the diagram.
- Which of the above mentioned number is the thickest artery? Also write its name.
- Mention the number and chamber of the heart which has the thickest muscular wall.
- Which of the above numbers/structures has the maximum number of blood capillaries?
- Draw neat and labelled diagrams of the transverse section of vena cava and the part numbered as 3. Make sure to show the structural differences between these two in the diagram.
