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प्रश्न
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in –
पर्याय
veins
arteries
heart
capillaries
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उत्तर
capillaries
Explanation:
Capillaries have thin walls, they pick up carbon dioxide and other wastes from every cell and pass them into the alveoli and kidneys respectively. They also pick up oxygen and digested food from the alveoli and small intestine respectively and pass them to each and everybody cell for cellular respiration.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
The liquid part of coagulated blood is known as____________.
Name the following:
Different blood groups
How many litres of blood does an adult human body have?
Given below is a diagrammatic representation of certain types of blood vessels in human body.
Identify the types of blood vessels numbered 1 to 5.
State the Function: Pulmonary vein
Choose the Odd One Out:
Long answer question:
Describe the histological structure of the artery, vein, and capillary.
Select the incorrect statements with respect to blood vessels.
- Capillaries are thin-walled having a single layer of ciliated epithelium.
- Arteries are pulsatile and devoid of valves.
- Portal vein starts as capillaries from one organ and ends as capillaries in another organ.
- All arteries carry oxygenated blood whereas all veins carry deoxygenated blood.
- Capillary walls bear fenestrae through which WBCs can move out by diapedesis.
Choose the correct answer from the options given below:
Differentiate between an artery and a vein with reference to lumen and thickness of wall.
Walls of capillaries consist of a single layer of squamous ______ cells.
