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प्रश्न
Blood consists of two parts - a liquid part and a cellular part. Name these parts and briefly write about them
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उत्तर
Plasma: The plasma is a light-yellow coloured, alkaline liquid which mainly consists of:
- Water- 90-92%
- Proteins – 7-8%
- Inorganic salts – 1%
- Other substances – traces
Cellular elements : These elements are of three categories:
- Red blood cells (erythrocytes)
- White blood cells (leukocytes)
- Blood platelets (thrombocytes)
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संबंधित प्रश्न
fill in the blanks with suitable functions: Eustachian Tube and ______
Mention the exact location of the Pulmonary semilunar valve
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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
Explain with reasons.
Human blood is red coloured.
The table below is designed to indicate the transport of certain substances in our body. Fill in the blanks with suitable answers.
| Substance | From | To | |
| 1. | ______ | Lungs | Whole Body |
| 2. | Carbon Dioxide | ______ | ______ |
| 3. | Urea | ______ | ______ |
| 4. | Digested Carbohydrates | Intestines | ______ |
| 5. | ______ | ______ | Target Organs |
| 6. | Heat | ______ | Whole Body |
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______ is an agranulocyte.
A resting person usually has a pulse rate between 72 to 80 beats per minute.
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Can you answer why the pulmonary artery shown in Fig. is blue in colour?
