Lab Ex 7 Muscle Practical Review

Hey, wanna make eye contact? These muscles around your eye help you bat your eyes; closes the eyelids and enables you to wink at the special person!

• Orbicularis Oris

• Orbicularis Oculi

• Corrugator

• Frontalis

Contraction of this muscle enables you to "duck lips" during a selfie.

• Orbicularis Oris

• Orbicularis Oculi

• Corrugator

• Occipitals

This muscle closes the mouth by raising your jawbone~ elevates the mandible (also used in chewing)

• Buccinator

• Zygomaticus Major

• Zygomaticus Minor

• Masseter

This large neck muscle helps rotate the head upward and side to side

• Masseter

• Buccinator

• Platysma

• Sternoclidomastoid

Muscle that elevates the eyebrows and wrinkles the forehead

• Frontalis

• Occipitals

• Corrugator

• Obicularis Oculi

Muscle that pulls the scalp posteriorly; elevates the eyebrows

• Occipitalis

• Frontalis

• Corrugator

• Zygomaticus Minor

This mouth muscle is one that is used for chewing~elevates the mandible; retracts the mandible (posterior fibers)* a powerful chewing muscle.

Clenching your teeth may lead to tension headaches.

• Temporalis

• Frontalis

• Occipitals

• Corrugator

This muscle pulls the corner of mouth laterally; presses the cheek against the teeth. "Horn Blower"

• Masseter

• Buccinator

• Zygomaticus Major

• Zygomaticus Minor

What muscle is shown?

• Splenius capitis

• Sternocleidomastoid

• Scalenes

• Trapezius

What muscle is this?

• Trapezius
• Erector spinae
• External obliques
• Internal obliques