Term
Epicranius (Frontal/Occipital)
What is the Orgin of the muscle located? |
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Definition
| The origin is located at the galea aponeurotica; occipital/ temporal bone |
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Term
Epicranius (Frontal/Occipital)
What is the insertion of the muscle and action? |
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Definition
Insertion: Skin of eyebrows; galea aponeurotica
Action: raises eyebrow, wrinkles forehead, pulls scap posteriorly. |
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Term
Corrugator Supercilii
What is the orgin of the muscle? |
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Definition
| Orgin: Arch of frontal bone above the nasal bone |
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Term
Corrugator Supercilii
Where is the insertion of the muscle and what is the action? |
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Definition
Insertion: Skin of eyebrow
Action: draws eyebrows together and inferiorly
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Term
Obicularius oculi
Where is the orgin of the muscle? |
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Definition
Orgin: Frontal/ maxillary bone; ligaments around orbit
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Term
Obicularius Oculi
Where is the insertion of the muscle and what is the action? |
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Definition
Insertion: Tissue of eyelid
Action: Closes eye |
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Term
Zygomaticus (major/minor)
Where is the orgin of the muscle? |
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Definition
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Term
Zygomaticus (major/minor)
Where is the insertion and what is the action of the muscle? |
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Definition
Insertion: Skin at angle of the mouth
Action: raises corner of mouth upward |
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Term
Risorius
Where is the orgin of the muscle? |
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Definition
Orgin: Fascia of masseter
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Term
Risorius
Where is the insertion and what is the action of the muscle? |
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Definition
Insertion: Skin/ muscle at angle of mouth
Action: draws corner of lip laterally |
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Term
Levator labii superioris
Where is the orgin of the msucle? |
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Definition
Orgin: zygomatic bone, infraorbitial margin of maxilla
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Term
Levator labii superioris
Where is the insertion and what is the action of the muscle? |
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Definition
Insertion: skin/muscle of upper lip
Action: Draws upper lip superiorly. |
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Term
Depressor labii inferioris
Where is the orgin of the muscle? |
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Definition
| Orgin: body of mandible lateral to midline |
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Term
Depressor labii inferioris
Where is the insertion and what is the action of the muscle? |
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Definition
Insertion: Skin/muscle of lower lip
Action: draws lower lip inferiorly |
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Term
Depressor anguli oris
Where is the orgin of the muscle? |
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Definition
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Term
Depressor anguli Oris
Where is the insertion and what is the action of the muscle? |
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Definition
Insertion: Corner of mouth
Action: Draws corner of mouth downward |
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Term
Obicularis Oris
Where is the orgin of the muscle? |
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Definition
| Orgin: Skin/muscle around mouth |
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Term
Obicularis Oris
Where is the insertion and what is the action of the muscle? |
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Definition
insertion: Skin/muscles at angle of mouth
Action: Closes lips; purses lips |
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Term
Mentalis
Where is the orgin of the muscle? |
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Definition
| Orgin: body of mandible below incisors |
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Term
Mentalis
Where is the insertion and what is the action of the muscle? |
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Definition
Insertion: Skin of chin
Action: wrinkles chin, protrudes lower lip |
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Term
Buccinator
Where is the orgin? |
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Definition
| Orgin: Maxilla/mandible in molar region |
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Term
buccinator
Where is the insertion? what is the action? |
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Definition
Insertion: obicularis oris
Action: compresses cheeks |
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Term
Platysma
Where is the orgin? |
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Definition
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Term
Platysma
Where is the insertion?
What is the action? |
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Definition
Insertion: lower margin of mandible; skin/muscle at corner of mouth
Action: tesnes skin of neck; depresses mandible |
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