Facial Muscles and Their Functions

The video tutorial covers the muscles of the face, focusing on facial expression, mastication, and sphincters. It explains the function of sphincters like orbicularis oculi and orbicularis oris, and discusses muscles like the zygomaticus and mentalis that contribute to facial expressions. The tutorial also covers the muscles of mastication, such as the masseter and temporalis, which are involved in chewing. The video concludes with a brief mention of upcoming topics on hyoid and neck muscles.

Which of the following is NOT a category of facial muscles discussed in the video?

• Muscles of facial expression

• Muscles of mastication

• Sphincters of the face

• Muscles of the neck

What is the primary function of the orbicularis oculi muscle?

• To open the mouth

• To elevate the upper lip

• To close the eye

• To depress the lower lip

Which muscle is known as the 'pout muscle'?

• Risorius

• Levator labii superiores

• Mentalis

• Zygomaticus major

What action does the zygomaticus major muscle assist with?

• Pouting

• Smiling

• Chewing

• Frowning

Which muscle pulls the corners of the mouth laterally?

• Risorius

• Triangularis

• Masseter

• Buccinator

What is the primary role of the masseter muscle?

• To compress the cheeks

• To elevate the mandible

• To depress the lower lip

• To close the eye

Which muscle is a synergist with the masseter?

• Temporalis

• Levator labii superiores

• Buccinator

• Orbicularis oris

What does the term 'mastication' refer to?

• Frowning

• Chewing

• Pouting

• Smiling

Which muscle compresses the cheeks but does not move the jawbone?

• Orbicularis oculi

• Temporalis

• Buccinator

• Masseter

What topic will be covered in the next video?

• Muscles of facial expression

• Muscles of mastication

• Muscles of the face

• Muscles of the hyoid and neck