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प्रश्न
The chief function of lymph nodes is to
पर्याय
produce WBCs
produce hormones
destroy old RBCs
destroy pathogens
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उत्तर
destroy pathogens
संबंधित प्रश्न
The table below is designed to indicate the transport of certain substance in our body. Fill in the
blanks with suitable answers.
| Substance | From | To |
| Lungs | Whole body | |
| Carbon dioxide | ||
| Urea | ||
| Digested carbohydrates |
Intestines | |
| Target organs |
Give reason for the following:
The walls of the left ventricle are thicker than the walls of all other chambers.
Given below is a highly schematic diagram of the human blood circulatory system.
 |
- 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
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 types 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?
- Which chamber of the heart receives oxygenated blood from the lungs?
Complete the following sentence with appropriate word:
Beside food, oxygen and waste materials, circulatory system transports ________ to various parts of the body.
Choose the correct alternative.
What is the minimum number of the plasma membrane that oxygen has to diffuse across to pass from air in the alveolus to haemoglobin inside a RBC?
Identify the normal haemoglobin count in human females.
Ventricles have ______ walls when compared with those of auricles.
 |
Can you answer why the pulmonary artery shown in Fig. is blue in colour?
