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प्रश्न
You can see some blood vessels on the outside of the hands specially in older people. Are those veins or arteries ? How can you confirm your answer ?
उत्तर
In older persons the skin becomes loose as the fat below becomes less with age and the vessels passing through these areas especially on the outside of the hands become prominent. These are veins as they flow superficially. The veins are thin and less muscular. These carry the blood to the heart veins are placed superficially so they are easily visible to the eye and are prominent.
The blood in the veins will be carrying CO2 and will have many substances like sugar, amino acids, chemicals and bacteria.
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संबंधित प्रश्न
Name the largest artery
What are the upper parts of the heart called?
Give any three differences between an artery and a vein.
During surgical operations or during accidents, the patient may be given blood from outside to save his life. What is the technical name of this process ? Briefly explain the precautions to be observed and taken in this process.
Name the organ from which oxygenated blood goes into the heart.
Differentiate between arteries and veins.
Write three types of blood vessels. Give one important feature of each.
Complete the following sentence with appropriate word:
__________ are the blood vessels which usually carry oxygenated blood.
Identify the pulse point ‘A’ from below given diagram.
A blood vessel which pumps the blood from the heart to the entire body:
