Observing and naming basic Action Units AUs (FACS) from gifs

Question 1

Which Action Unit is being depicted?

Answer 1

AU 1

Inner brow raiser

Muscle-Frontalis (medial part)

Question 2

Which Action Unit is being depicted?

Answer 2

AU 2

Outer brow raiser

Muscle-Frontalis (lateral part)

Question 3

Which Action Unit is being depicted?

Answer 3

AU 4

Brow lowerer

Muscles- Corrugator Supercilli

• Procerus (*a.k.a. Pyramidalis nasi, Depressor glaballae)
• Depressor Supercilli*

Question 4

Which Action Unit is being depicted?

Answer 4

AU 5

Upper lid raiser

Muscles- Levator palpebrae superioris (Lid raiser)

Superior Tarsal Muscle (Holds lid up)

Question 5

Which Action Unit is being depicted?

Answer 5

AU 6

Cheek raiser

Muscle-Obicularis occuli (orbital part)

Question 6

Which Action Unit is being depicted?

Answer 6

AU 7

Lid tightener

Muscle- Obicularis occuli (palpebral part)

Question 7

Which Action Unit is being depicted?

Answer 7

AU 8

(also depicted is AU25 Lips part and AU26 Jaw drop)

Lips toward each other

Muscle-Obicularis oris

Question 8

Which Action Unit is being depicted?

Answer 8

AU 9

Nose Wrinkler

Muscle- Levator labii superioris alaeque nasi

Question 9

Which Action Unit is being depicted?

Answer 9

AU 10

Upper lip raiser

Muscle- Levator labii superioris

Question 10

Which Action Unit is being depicted?

Answer 10

AU 11

Nasolabial Furrow Deepener

Muscle- Zygomaticus minor

Question 11

Which Action Unit is being depicted?

Answer 11

AU 12

Lip corner puller

Muscle- Zygomaticus major

Question 12

Which Action Unit is being depicted?

Answer 12

AU 13

Sharp lip puller (a.k.a. Cheek puffer)

Muscle- Levator Anguli Oris

Question 13

Which Action Unit is being depicted?

Answer 13

AU 14

Dimpler

Muscle-Buccinator

Question 14

Which Action Unit is being depicted?

Answer 14

AU 15

Lip corner depressor

Muscle- Depressor anguli oris (a.k.a. Triangularis)

Question 15

Which Action Unit is being depicted?

Answer 15

AU 16

Lower lip depressor

(AU 25 lips parted also depicted)

Muscle- Depressor labii inferioris

Question 16

Which Action Unit is being depicted?

Answer 16

AU 17

Chin raiser

Muscle- Mentalis

Question 17

Which Action Unit is being depicted?

Answer 17

AU 18

Lip pucker

Muscle-Orbicularis Oris

(the incisivii labii and incisivii labii inferioris fibers)

Question 18

Which Action Unit is being depicted?

Answer 18

AU 19

Tongue show

Muscle- Genioglossus

Question 19

Which Action Unit is being depicted?

Answer 19

AU 20

Lip stretcher

Muscle- Risorius

Question 20

Which Action Unit is being depicted?

Answer 20

AU 21

Neck tightener

Muscle- Platysma

Question 21

Which Action Unit is being depicted?

Answer 21

AU 22

Lip funneler

(also depicted AU25 lips open)

Muscle- Orbicularis oris

Question 22

Which Action Unit is being depicted?

Answer 22

AU 23

Lip tightener

Muscle- Orbicularis oris

Question 23

Which Action Unit is being depicted?

Answer 23

AU 24

Lip pressor

Muscle- Obicularis oris

Question 24

Which Action Unit is being depicted?

Answer 24

AU 25

Lips part

Muscle- Depressor labii inferioris

Question 25

Which Action Unit is being depicted?

Answer 25

AU 26 Jaw drop Muscle- *Lateral Pterygoid the Inferior head portion* (*Relaxation of the Masseter, Temporalis, and Medial Pterygoid*)

Question 26

Which Action Unit is being depicted?

Answer 26

AU 27 Mouth stretch Muscle- *Lateral Pterygoid (the Inferior head portion) and Digastric*

Question 27

Which Action Unit is being depicted?

Answer 27

AU 28 Lip suck Muscle- *Obicularis oris*