Answer
Statement 2 is **true**. The orbicularis oculi is indeed a sphincter muscle. The orbicularis oculi muscle encircles the eye and is responsible for closing the eyelids, which is essential for activities like blinking, squinting, and protecting the eye. Its circular shape and function make it a sphincter muscle, as it can contract and constrict the opening it surrounds.
Work Step by Step
Statement 2 is **true**. The orbicularis oculi is indeed a sphincter muscle. The orbicularis oculi muscle encircles the eye and is responsible for closing the eyelids, which is essential for activities like blinking, squinting, and protecting the eye. Its circular shape and function make it a sphincter muscle, as it can contract and constrict the opening it surrounds.