![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-go4_gUfswlx47iuabTgMKhxUhYRn8OscOYfPpw6cBM2aGQMQEuQisM8K-D1gS_VBA5J-t02OJH6-wn7Nvay0SB64QwyliN6_WR1sxlmleDfRGSDZWn9H8Jm1ux75wM_uWdKfb3Id30me/s320/muscles+of+the+head.png)
Facial muscles:
Epicranius (occipitofrontalis)
Frontal belly
Occipital belly
Galea aponeurotica
Orbicularis oculi
Buccinator
Orbicularis oris
Nasalis
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRsEM574H_g0u1N3FxWBD0lcAONmRNFBrl_MBd73y9nih-_26Wt88Nr_STveOocx8x9iQouTb59aqOsQrHvhLcf9fl8O8ghkAawpwua6RKIBNrxfYosASmHoVDAknaQDoYyf91VvR1r0Yt/s320/Muscles+of+the+head+1.png)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiurnE8y98zk4mWpi8Qd3IHsnXOdfRNSmGnLgkroffumgVVqRpx-scwKSHH20QXF8WaJI-ZlFDlaRDalZGlg1ehyp37PdLsc5VX2PxfIIvmouAzKooyvrk-_jZaxEenHPn_LUVuc-0i2rhyphenhyphen/s320/muscles.png)
Masticatory muscles
Masseter :
Origin-inferior border and medial surface of zygomatic arch
Insertion-lateral surface of ramus of mandible and angle of mandible
Temporalis :
Origin-temporal fossa
Insertion-coronoid process of mandible
Action : masseter, temporalis --- elevates mandible
—close the mouth
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLZrk0lhaIKOp_02lSj1TSlevgu9AvXAgfP3MvdH8OMseoLdYaSTJAl_nUA-gqHAbOUIYK0rpk6_u9CptTKB46PQ4ppXVD3llQ2aL4zXPTki1P5hud3kVFHXmuXkl4ERjbPvL7mAgJ3qki/s320/Masticatory+muscles.png)
medial pterygoid
lateral pterygoid
Action :
Medial pterygoid—elevates mandible—close the mouth
Lateral pterygoid—pull the head of mandible forwards--- open the mouth
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifCWGFyx341z0c52VLngVR2eNuldEsokKFti-b3tOWx0lunm0DftpdXlrFPQLqlSAjJzAwrJoE3TazXR-exH0LgwUqBdMTycIgZhRultLnenlqou6nWL9Z-iNM-bwhphH45u5HtGK1FAoO/s320/masticatory+muscles+1.png)
Muscles of neck
Superficial group :
Platysma
Sternocleidomastoid
Origins: manubrium and medial1/3 of clavicle
Insertion: mastoid process of temporal bone;
Actions: acting alone, the head is inclined ipsilateral and the face is rotated to opposite side; acting together, they extend the head.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcnZuluQyB2Lk2NuhDVcYj1k1JvcH6JBZD7yfU5ieBcD1e6xWsBYAGPi4lhDTTDQ5_OLaxKMqKcd4lL9jW2-f5MO2WHkSKtF5iD2vGuq4A2iQudwoA8b6bY1bJ263tgONDpUJD4v7HQWJf/s320/muscle+of+neck.png)
Suprahyoid muscles :
Mylohyoid
Stylohyoid
Geniohyoid
Action: Elevate (raise) hyoid bone and depress mandible.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCGHoj3liEiuPDWYsR-PC5AQwQfa-py492XrCBnZqMUsDmFxhkV9SzHx80Kj_4yx6ZIJPyPCjhhwtmq8EHJG_z-091GaO2_lqbFapNalP4-XGJS-27SaoQVn1e2nhKXBhN9tJ6o8g-rpn_/s320/suprahyoid+muscles.png)
Infrahyoid muscles :
sternohyoid
omohyoid
sternothyroid
thyrohyoid
Action: depress hyoid or larynx
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi842S2WToqf7epXyIt1hZ7crAL1SoE-AnDbru42HNlNvRa34q8gXO3EbnTKvwECBIF2gds99jkCDyI1WM2gYwjNyyfFwG59Wq90qmEKq-carXNyPVDWnakUepCy_stgBCli3L5-USUgYSb/s320/infrahyoid+muscles.png)
The deep cervical muscles:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3CsHcIm9BoXkA1j-3XrShyphenhyphena0AVUM603WrvvdgKN7VSVNDVNtqcoPoMPqlXiMtmyW6BKZsghv83xKMGfeRofmBQze5BG0yMwWLgf5H1JfY7csB66pbTZztVe-13rEVLycK-XDDESeWWuxi/s320/the+deep+cervical+muscles.png)
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