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Transcript 
Head and Neck
Skull superior
Skull lateral
F
S
P
T
Skull posterior
THE SKULL AT BIRTH
‫مفصل فک تحتانی‬
‫‪10‬‬
Elevation
11
Head movements
Head movements
Atlanto – axial joint
(rotation)
Atlanto - occipital joint
(flextion/xtension)
Extension
Flexion
Sternocleidomastoid
ORIGIN
Sternum and clavicle
INSERTION
Mastoid
ACTION
Flexes and rotates the head
Trapezius
ORIGIN
Spinous processes of cervical and thoracic vertebra
INSERTION
posterior of clavicle and spine of scapula
ACTION
If scapula is fixed, extends neck
Rotation
Facial expression
20
21
22
Facial expression
SCALP
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