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प्रश्न
Give reason for the following:
Blood flowing away from the stomach and intestines is put into circulation via the liver and
not directly.
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उत्तर
The blood from stomach and intestines enters the liver via hepatic portal vein because the
liver monitors all the substances that have to be circulated in body. The excess nutrients such
as glucose, fats are stores in the liver. Excess amino acids are broken down by the process
deamination. Toxic substances are detoxified.
संबंधित प्रश्न
Name the following:
The blood vessel which supplies blood to the liver.
With which human organ system (or human systems) is vena cava associated?
Draw the structure of a human heart and label its parts.
Match the items in Column ‘A’ with those in column ‘B’ Rewrite the correct matching pairs.
| Column A | Column B | ||
| (a) | SA Node | (i) | Plasma |
| (b) | Defective haemoglobin in RBC | (ii) | Serum |
| (c) | Muscle fibres located in heart | (iii) | Pacemaker |
| (d) | The liquid squeezed out of blood during clotting | (iv) | Sickle cell anaemia |
| (e) | Never tires, keep on contracting and relaxing | (v) | Purkinje fibres |
| (f) | Cardiac cycle | (vi) | Cardiac muscle |
| (g) | Liquid part of the blood without corpuscles | (vii) | 0·85 sec |
Give reason for the following:
The arteries are deep seated in the body
Find out my partner.
| Group 'A' | Group 'B' |
| 1. Heart beats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37∘C |
| 4. Blood donation | d. 72 |
| 5. Normal body Temperature | e. 50-60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000-6000 per mm3 |
Multiple choice questions. Tick ( ✓ ) the correct choice:
The blood vessels in which blood goes away from the heart to different body parts are
Name the systems that carry out the different functions of the body.
Analogy
Lungs: Respiratory system:: _______: Circulatory system.
Which of the following is/are required for the production of RBCs?
