Facial Muscles Flashcards
All of the facial muscles get their function from what nerve?
VII (7)
Where do the facial muscles get their blood supply?
Usually from the facial artery
Are the facial muscles paired or unpaired?
Paired
Connective tissue sheet that connects one belly to the other is called?
Epicrainial aponeurosis
What connective tissue allows the scalp to move?
Epicrainial aponeurosis
The epicranius has 2 bellies what are their names?
Frontal belly and Occipital belly
The origin of the frontal belly goes where?
The eicrainial aponeurosis
The frontal belly inserts where?
Eyebrow and the root of the nose (superiorly placed)
What muscle inserts in the eyebrow and the root of the nose?
Frontal belly
The origin of the occipital belly goes where?
Occipital and temporal bone
The occipital belly inserts where?
Epicrainial Aponeurosis
What is the action of the Epicranius?
raise eyebrows and scalp
*Insert of one belly is the origin of the other belly
.
What nerve is used to control the frontal belly?
VII (7)
What nerve is used to control the occipital belly?
VII (7)
What nerve is used to control the orbicularis oculi?
VII (7)
The orbital portion of the orbicularis oculi is located where?
around the eye
The orbicularis oculi has how many parts?
2
What are the parts of the orbicularis oculi?
Orbital portion & Palpebral portion
What is the origin of the orbital portion of the orbicularis oculi?
Orbital rim
What is the insertion of the orbital portion of the orbicularis oculi?
Skin lateral to the eye
What is the origin of the palpebral portion of the orbicularis oculi?
Medial and Lateral corners of te eye
What is the insertion of the palpebral portion of the orbicularis oculi?
Shared with the origin. Medial and lateral corners of the eye
The palpebral portion of the orbicularis oculi is located where?
Within the orbital portion of the orbicularis oculi
What nerve controls the corrugator supercilii?
Nerve VII (7)
What is the origin of the corrugator supercilli?
Frontal bone (close to the midline)
Where is the insertion of the corrugator supercilli?
Skin lateral to the eyebrow
What is the action of the corrugator supercilli?
moves the skin of the eyebrow medial and inferior vertical. Creates the vertical wrinkles in the forehead. (furrows the brow)
What muscle is the opposite of the corrugator supercilli?
Procerus
Where is the procerus located?
it is the triangle muscle in between the eyebrows
What is the origin of the procerus?
Nasal bone
Where is the insertion of the procerus?
Skin of the forehead
What is the action of the procerus?
Horizontal wrinkles of the forehead between the eyebrows
