Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days
For Business Enquiry


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

Give reason:

(i) Though pulmonary artery carries carbon-dioxide rich blood, it is still called as artery and not vein.

(ii) Arteries have thick, elastic walls.

(iii) Blood of all humans are red in colour.

Asked by Topperlearning User 7th November 2013, 11:18 PM
Answered by Expert
(i) This is because pulmonary artery carries blood away from the heart and not towards it like a vein does.

(ii) Since the blood flow through arteries rapidly at high pressure, the arteries have thick elastic walls.

(iii) The red blood cells contain a red pigment called haemoglobin. The presence of haemoglobin makes blood appear red.
Answered by Expert 8th November 2013, 1:18 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp