In a Sandstorm, Which of the Following Muscles Would Protect

Question

In a sandstorm, which of the following muscles would protect the eyes, by closing the eyelids?
A)Levator palpebrae superioris
B)Orbicularis oculi
C)Superior rectus and inferior rectus
D)Lateral rectus and medial rectus
E)Superior oblique and inferior oblique

Accepted Answer

The orbicularis oculi muscle is responsible for closing and protecting the eyes, especially in response to stimuli such as a sandstorm. The levator palpebrae superioris muscle raises the eyelid and is not involved in protecting the eyes from foreign particles. The superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique and inferior oblique muscles are all responsible for eye movement and do not protect the eyes from sandstorms or other particles.