The valves of veins are small pieces of strong tissue which allow blood flow in one direction only. These valves are controlled by muscle contractions.
Displayed on other page
Join our Newsletter and receive our free ebook: Guide to Mastering the Study of Anatomy
Thank you for subscribing! Now please check your email to confirm your subscription.
There was an error submitting your subscription. Please try again.
We hate spam as much as you do. Unsubscribe at any time.