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9 Cards in this Set
- Front
- Back
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Origin: The epicranial aponeurosis (AKA Galea aponeurotica)
Insertion: the skin of the forehead, and the orbicularis occuli muscle. |
1) Frontalis
Action: Raises eyebrow |
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Origin: The occipital bone.
Insertion: The epicranial aponeurosis (Galea aponeurotica). |
2) Occipitalis
Action: Assists in raising the eyebrows. |
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Origin: Lateral side of the
lateral pterygoid plate. Insertion: Articular disc and capsule of the tempormandibular joint(TMJ), as well as the manible. |
3) Lateral Pterygoid
Action:Some fibers assist opening of the jaw, some fibers assist closing of the jaw. Some fibers align the articular disc of the TMJ, which prevents grinding of the articular condyle. |
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Origin:The bones of the orbit of the eye.
Insertion:the eyelids. |
4) Orbicularis Oculi
Action: Closes the eye. |
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Origin:zygomatic bone.
Insertion:the corners of the mouth and orbicularis oris muscle. |
5) Zygomaticus Major & Minor
Action: Elevating the angle(corners) of the mouth, as in smiling. |
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Origin:Temporal and parietal bones(temporal fossa)
Insertion:Coronoid process of the mandible. |
6) Temporalis
Action: Closes the jaw(chewing/mastication) |
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Origin:The zygomatic arch.
Insertion:The angle of the mandible(the superficial side) |
7) Masseter
Action:Closes the jaw(chewing/mastication) |
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Origin:Medial side of the lateral pterygoid plate
Insertion:The angle of the mandible(the deepside) |
8) Medial Pterygoid
Action:Closes the jaw(chewing/mastication) |
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Origin:The subcutaneous fascia near the clavical.
Insertion:the subcutaneous fascia of the lower face. |
9) Platysma
Action:Depresses the angle of the mouth(frowning). |
