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प्रश्न
Give any three differences between an artery and a vein
Distinguish between artery and vein.
उत्तर
| Artery | Vein |
| Arteries carry blood from the heart to various body parts. | Veins carry blood from different body parts to the heart. |
| These carry oxygenated blood (except the pulmonary artery). | These carry deoxygenatec blood (except the pulmonary vein). |
| Blood flows with high speed and under high pressure. | Blood flows with low speed and under low pressure. |
| Valves are absent. | Valves are present. |
| Thick elastic walls present. | Walls thinner than arteries present |
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संबंधित प्रश्न
Give appropriate biological or technical terms for the following
The relaxation phase of the heart.
MULTIPLE CHOICE TYPE:
(Select the most appropriate option)
The valve present between the right atrium and the right ventricle is the
(a) tricuspid valve
(b) bicuspid valve
(c) semi-lunar valve
(d) mitral valve
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 |
Given diagram shows a simple diagram of the circulation of blood in a mamma showing the
main blood vessels, the heart, lungs and body tissues. The blood vessel, labelled 6, contains
deoxygenated blood and the valve leading to it has three semi-lunar pockets.
(a) Name the blood vessels and organs marked by numbers 1 to 8.
(b) What is meant by the term ‘double circulation’ of blood in mammals?
(c) what is diastole?
[There is an “error” in the diagram. According to the usual practice the pulmonary (lung)
circulation is shown upward and the systemic downward, but here it is reversed].
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 |
Choose the correct answer:
English physician who discovered blood circulation was ___________
Given below is a highly schematic diagram of the human blood circulatory system.
Which numbers represent the following respectively?
Aorta
Hepatic portal vein
Pulmonary artery
Superior vena cava
Renal vein
Stomach
Fill in the blanks with suitable words given below:
The ______ artery takes the blood from the ventricles to the lungs.
Name the three kinds of blood vessels found in human beings. With the help of suitable diagrams, differentiate between them.
Given below is a schematic representation of the circulatory system in man. Study the same and answer the questions that follow:
(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Name the Following
The enzyme which converts fibrinogen to fibrin.
Name the Following
The blood plasma from which fibrinogen has been removed.
Use your brain power!
How is the air that we inhale purified in our body?
Explain the main parts of the circulatory system.
Blood is produced in the bone marrow.
Which of the following is TRUE regarding leucocytosis?
Which of the following is TRUE regarding closed circulatory system?
Which component of the haemoglobin molecule combines with the oxygen molecule to form oxyhaemoglobin?
Name these:
Three circulating fluids in human body.
The valve which prevents back flow of blood in the veins and lymph vessels is ______.
