Explained Solutions
Muscle action of the TMJ - depress Right Ans - Lateral pterygoid
Suprahyoid
Infrahyoid
Muscle action of the TMJ - elevate Right Ans - Temporalis
Masseter
Medial pterygoid
Muscle action of the TMJ - Protrustion Right Ans - Masseter
Lateral/ medial pterygoid
Muscle action of the TMJ - Retrusion Right Ans - Temporalis
Masseter
Digastric
Muscle action of the TMJ - side to side Right Ans - Medial/ lateral pterygoid
Masseter
Temporalis
Muscle action of the cervical intervertebral joint - flexion Right Ans -
Sternocleidomastoid
Longus colli
scalenes
Muscle action of the cervical intervertebral joint - extension Right Ans -
Splinius cervicis
Semi-splinius cervicis
iliocistalis cervicis
longissimus cervicis
Multifidus
Trapezius
Muscle action of the cervical intervertebral jjoint - rotation and lateral
bending Right Ans - sternocleidomastoid
scalenes
, splenius cervicis
longissimus cervicis
iliocostalis cervicis
levator scapulae
multifidus
Muscle action of the thoracic and lumbar intervertebral joints - rotation and
side bending Right Ans - psoas major
Quadratus lumborus
external obliques
internal obliques
multifidus
longissimus thoracis
iliocostalis thoracis
rotatores
Muscle action of the scapula - elevation Right Ans - upper trapezius
levator scapulae
Muscle action of the scapula - protraction Right Ans - serratus anterion
pectoralis minor
Muscle action of the scapula - upward rotation Right Ans - upper/ lower
trapezius
serratus anterior
Muscle action of the scapula - depression Right Ans - latissimus dorsi
pectoralis major/ minor
lower trapezius
Muscle action of the scapula - retraction Right Ans - trapezius (middle)
rhomboids
Muscle action of the scapula - downward rotation Right Ans - rhomboids
levator scapulae
pectoralis minor
muscle action of the shoulder joint - flexion Right Ans - anterior deltoid
coracobrachialis