The saphenae are the two main veins in the leg that carry blood back to the heart.
The word saphenae is a medical term and is used by doctors and nurses.
Examples:
The doctor checked the saphenae in my leg.
The nurse wrapped a bandage around the saphenae.
The saphenae help the blood go back to the heart.
The saphenae are like rivers in your legs.
If you cut the saphenae, you will bleed a lot.
The saphenae are very important for your body to work right.