asked 100k views
2 votes
The ____________ acts as the first sphincter of the digestive tract by voluntarily controlling entrance into the ____________ .

1 Answer

5 votes

Answer:

The orbicularis oris acts as the first sphincter of the digestive tract by voluntarily controlling entrance into the buccal cavity.

Step-by-step explanation:

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.