A ring-shaped muscle that surrounds a natural opening in the body and can open or close it by relaxing or contracting.
Home SPHINCTER
Life-changing donations
Giving the gift of life is easier than you think. Donating blood or signing up to a bone marrow registry will take only minutes...
How to: Smarter grocery storage
Master the art of storage to help your groceries last longer, cut kitchen waste and save a few dollars. There are optimal places to store...
Give the gift of life
Giving the gift of life is easier than you think. Donating blood or signing up to a bone marrow registry will only take minutes...