CIRCULAR MUSCLES Flashcards
1
Q
What is the shape of circular muscles?
A
Fibers concentrically arranged around an opening or recess (form sphincters)
2
Q
What happens when circular muscles contract?
A
Contraction of muscle reduces diameter of opening
3
Q
What are the two places ciruclar muscles are found?
A
- Orbicularis oculi (eye)
- Orbicularis oris (mouth)