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प्रश्न
Define the Circulatory system.
Define the following term:
Circulatory system
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उत्तर
The circulatory system is a transport system moving substances throughout our body with the help of blood.
संबंधित प्रश्न
The diagram below represents the human heart in one phase of its function. Study the diagram carefully and answer the questions that follow:
(i) Name the phase.
(ii) Which part of the heart is contracting in this phase? Give a reason to support your answer.
(iii) Name the parts labelled 1 to 4.
(iv) What type of blood flows through ‘2’?
(v) State the function of the part numbered ‘5’.
(vi) Name the membrane that covers the heart.
When a doctor is recording your pulse, he is pressing on your wrist exactly on a
The chief function of lymph nodes is to
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
Note the relationship between the first two words and suggest the suitable word/ word for the
fourth place:
Lubb: Atrioventricualr valves :: dup: …………………
Differentiate between members of the following pairs with reference to the aspect asked
within bracket:
Erythrocytes and leucocytes (function)
Match the items given in Column A with the most appropriate ones in Column B and REWRITE the correct matching pairs :
Column A Column B
(i) Cranial nerves Testosterone
(ii) Leydig cells Natural reflex
(iii) Acetylcholine 12 pairs
(iv) Spinal nerves Prolactin
(v) Sneezing Neurotransmitter
- 18 pairs
- 31 pairs
- Conditioned reflex
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 |
Cardiac muscles are ______.
Fill in the blank:
In human body, heart is located on the _____ side of the chest cavity.
True or false:
People with blood group ‘O’ are called universal recipients
Why is a person having blood group AB called universal recipient and a person with blood group O called a universal donor?
How many litres of blood does an adult human body have?
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 |
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
Explain the Term
Hepatic Portal System
The endocrine glands produce chemical substances called ____
A resting person usually has a pulse rate between 72 to 80 beats per minute.
Name these:
Three components of circulatory system.
