Biology, asked by harshal3330, 4 days ago

why the veins provided with valves? Why the arteries have thick wall?​

Answers

Answered by Hrydhaan123
2

Answer:

The main function of the valves in veins is to prevent back flow of blood. ... It is the veins further away from the heart in the lower limbs that have valves. This is to ensure that blood only flows in one direction ie back to the heart.

Previous Question
Next Question
Similar questions
English, 2 days ago
Why did Mrs Hall make every effort to be friendly with Griffin?​
Math, 2 days ago
15% of the cost of a computer was tax.If the tax is ₹1800,what was the cost of the computer​...
English, 2 days ago
Write a summary analyzing the development of the central idea over the course of the poem. I NEED HELP...
Science, 4 days ago
5. We can see objects because light travels (a) from eye to object (b) from object to eye (c) from object to space (d) from sun to object ​...
Geography, 4 days ago
Our earth bigest sweet water lake name...
Math, 8 months ago
PQ is a tunnel. A dog sits at a distance of 5/11 of PQ from P. The train's whistle coming from any end of the tunnel would make the dog run. If a train approaches P and the dog runs towards P, the train would hit the dog at P. If the dog runs towards Q instead, it would hit the dog at Q. Find the ratio of the speeds of the train and the dog (A) 5:2 (B) 16:5 (C)) 11:1 (D) 34 : 3​...
History, 8 months ago
.In January 1871 who  was proclaimed German Emperor in a ceremony held at Versailles? ​
Biology, 8 months ago
What is ozone hole ? in which part of atmosphere is present the ozone sheild​...