Identifying Important Facial Muscles

This video tutorial covers the basics of muscle anatomy, focusing on facial and head muscles. It explains the functions and locations of key muscles such as the temporalis, masseter, frontalis, orbicularis oculi, orbicularis oris, zygomaticus, sternocleidomastoid, and occipitalis. The tutorial highlights the roles these muscles play in actions like chewing, facial expressions, and neck movements.

Which muscle is primarily responsible for elevating the mandible during chewing?

• Zygomaticus Major

• Orbicularis Oris

• Temporalis

• Frontalis

What is the main function of the frontalis muscles?

• Smiling

• Raising eyebrows

• Chewing

• Squinting

Which muscle helps in squinting by constricting the diameter of the eye opening?

• Orbicularis Oculi

• Masseter

• Orbicularis Oris

• Zygomaticus Minor

What action is associated with the orbicularis oris muscle?

• Chewing

• Neck flexion

• Whistling

• Raising eyebrows

Which muscle is known as the 'smiling muscle'?

• Frontalis

• Zygomaticus Major

• Temporalis

• Orbicularis Oculi

What is the primary function of the sternocleidomastoid muscle?

• Raising eyebrows

• Smiling

• Neck flexion

• Chewing

Which muscle is part of the epicranius along with the frontalis?

• Orbicularis Oris

• Occipitalis

• Zygomaticus Minor

• Masseter