BSL Sign Language Dictionary

Search and compare thousands of words and phrases in British Sign Language (BSL). The largest collection online.

Android app on Google Play
NEW View all these signs in the Sign BSL Android App. Download for free.

yolk sac

How to sign: membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional

Sorry, no video found for this word.

Similiar / Same: vitelline sac, umbilical vesicle, vesicula umbilicus

Categories: sac

Do you know the sign for this?

Upload your sign now.

Share »   Facebook Twitter Pinterest Email