Compare the structural differences between arteries, veins and capillaries and how each difference helps efficient blood transport

In arteries, the main structural difference is the thickness of the arterial wall, due to an increased amount of smooth muscle, arteries have much thicker walls than both veins and capillaries to ensure they can withstand pressure exerted by the blood and to also maintain this pressure as blood travels around the body.

In veins, the main structural difference is the presence of valves. Valves ensure blood flows in one direction and that backflow does not occur, ensuring deoxygenated blood reaches the heart. Whilst in capillaries, their tiny lumen means red blood cells are forced to travel single file, this means there is more time for diffusion of oxygen into the body's cells.

Answered by Lauren G. Biology tutor

8743 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Describe blood flow through the heart


Explain how arteries and veins differ in their structure and how this relates to their function? (4)


A walker falls through thin ice into very cold water. What does the body do to stop the core body temperature from falling too quickly?


I'm confused in the difference between the cell wall and the cell membrane?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences