1.3 The Face Flashcards
What are the Muscles of Facial Expression important in?
Communication - Particularly Emotion
Note: Some also control opening / closing of openings in the face (e.g. eyes, nose, mouth)
Where do the Muscles of Facial Expression lie?
Within the Superficial Fascia of the Face (and Neck)
How do the Muscles of Facial Expression differ from Skeletal Muscle, in terms of Position (i.e. Superficial / Deep)?
The Muscles of Facial Expression are more Superficial than the Skeletal Muscle
How do the Muscles of Facial Expression differ from Skeletal Muscle, in terms of Attachment?
The Muscles of Facial Expression are attached directly onto the Skin
Where does the Frontal Belly of the Occiptiofrontalis Muscle lie?
Over the Forehead
Where does the Orbicularis Oculi lie?
Superior to the Eye
Where does the Palpebral Oculi lie?
Inferior to the Eye
Where does the Orbicularis Oris lie?
Around the Mouth
Where does the Buccinators lie?
Within the Cheeks
Where does the Platysma lie?
Superficially in the Neck
What are the actions of the Platysma?
Depress the Jaw
Draws down the Lower Lip
What Nerve innervates the Muscles of Facial Expression?
Cranial Nerve XII (The Facial Nerve) via it’s terminal branches
Through what Foramen does the Facial Nerve leave the Cranial Cavity?
Stylomastoid Foramen
What are the 2 bony points on either side of the Stylomastoid Foramen?
- The Mastoid Process (Posterolaterally)
- The Styloid Process (Anteromedially)
Which Gland does the Facial Nerve enter into before it splits into its Terminal Branches
The Parotid Gland:
The branches emerge from the anterior border of the gland and travel on the side of the face to innervate the muscles of facial expression