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Muscles of Facial Expression Lecture #4

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Presentation on theme: "Muscles of Facial Expression Lecture #4"— Presentation transcript:

1 Muscles of Facial Expression Lecture #4
Head and Neck Anatomy H211

2 Facial Muscles – Terminology
“Levator. . .” - Raises “Depressor. . .” - lowers “Major” – the larger “Minor” – the smaller “Superioris” – superior “Inferiorioris” – inferior “Orbicularis” - encircles Table 4-2 pg. 100

3 Facial Muscles – Surprise
Epicranial: Raises forehead, pulls scalp backward Fig 4-7

4 Facial Muscles – Surprise
Epicranial: Raises forehead, pulls scalp backward Table 4-2 pg. 100

5 Facial Muscles – Closing Eyelid
Orbicularis oculi: Closes eyelid Fig 4-9

6 Facial Muscles – Closing Eyelid
Orbicularis oculi: Closes eyelid Table 4-2 pg. 100

7 Facial Muscles – Frowning
Corrugator supercilii: Draws eyebrow medially Fig 4-9

8 Facial Muscles – Frowning
Corrugator supercilii: Draws eyebrow medially Table 4-2 pg. 100

9 Facial Muscles – Closing Lips
Orbicularis oris: Closes or purses lips Fig 4-10

10 Facial Muscles – Closing Lips
Orbicularis oris: Closes or purses lips Table 4-2 pg. 100

11 Facial Muscles – Assist Chewing
Table 4-2 pg. 100 Buccinator: Moves “bolus” of food Fig 4_11

12 Facial Muscles – Opening
Table 4-2 pg. 100 Risorius: Smile widely Fig 4-12

13 Facial Muscles – Opening
Risorius: Smile widely Table 4-2 pg. 100

14 Facial Muscles – Raising Upper Lip
Table 4-2 pg. 100 Levator labii superioris: Raises upper lip Fig 4-13

15 Facial Muscles – Raising Upper Lip
Levator labii superioris: Raises upper lip Table 4-2 pg. 100

16 Facial Muscles – Raising Upper Lip
Table 4-2 pg. 100 Levator labii superioris alaeque nasi: Raises upper lip and widens nostril Fig 4-13

17 Facial Muscles – Raising Upper Lip
Table 4-2 pg. 100 Levator labii superioris alaeque nasi: Raises upper lip and widens nostril

18 Facial Muscles – Smiling
Table 4-2 pg. 100 Zygomaticus major: Draws cheek back and corner of mouth open Fig 4-13

19 Facial Muscles – Smiling
Zygomaticus major: Draws cheek back and corner of mouth open Table 4-2 pg. 100

20 Facial Muscles – Raising Upper Lip
Table 4-2 pg. 100 Zygomaticus minor: Raises upper lip Fig 4-13

21 Facial Muscles – Raising Upper Lip
Zygomaticus minor: Raises upper lip Table 4-2 pg. 100

22 Facial Muscles – Smiling
Table 4-2 pg. 100 Levator anguli oris: Raises angle of mouth Fig 4-13

23 Facial Muscles – Smiling
Levator anguli oris: Raises angle of mouth Table 4-2 pg. 100

24 Facial Muscles – Frowning
Table 4-2 pg. 100 Depressor anguli oris: Lowers angle of mouth Fig 4-15

25 Facial Muscles – Frowning
Depressor anguli oris: Lowers angle of mouth Table 4-2 pg. 100

26 Facial Muscles – Lowering Lower Lip
Table 4-2 pg. 100 Depressor labii inferioris: Lowers lower lip Fig 4-15

27 Facial Muscles – Lowering Lower Lip
Depressor labii inferioris: Lowers lower lip Table 4-2 pg. 100

28 Facial Muscles – Raising Chin
Table 4-2 pg. 100 Mentalis: Raises chin, protrudes lower lip, and Decreases depth of lower vestibule. Fig 4-16

29 Facial Muscles – Raising Chin
Mentalis: Raises chin, protrudes lower lip, and decreases depth of lower vestibule. Table 4-2 pg. 100

30 Facial Muscles – Grimacing
Table 4-2 pg. 100 Platysma: Raises skin of neck and lowers corner of mouth. Fig 4-17

31 Facial Muscles – Grimacing
Platysma: Raises skin of neck and lowers corner of mouth Table 4-2 pg. 100

32 The End


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