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Cervical Extensors
Muscle actions and nerve innervation
8
Science
Graduate
09/27/2010

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Term
Longissimus Cervicis
Definition
C3-T3 Spinal nerves

Cervical extension (bilateral)
Lateral bending of cervical spine to same side (unilateral)
Term
Semispinales Cervicis
Definition
C2-T5 Spinal nerves

Cervical extension (bilateral)
Lateral bending of cervical spine to same side (unilateral)
Rotation of cervical spine to opposite side (unilateral)
Term
Iliocostalis Cervicis
Definition
C4-T3 Spinal nerves

Cervical extension (bilateral)
Lateral bending of cervical spine to same side (unilateral)
Assist depression of ribs
Term
Splenius Cervicis
Definition
C4-C8 Spinal nerves

Cervical extension (bilateral)
Lateral bending of cervical spine to same side (unilatearl)
Rotation of cervical spine to same side (unilateral)
Term
Spinalis Cervicis
Definition
C3-C8 Spinal nerves

Extension of cervical spine
Term
Interspinales Cervicis
Definition
C3-C8 Spinal nerves
Extension of cervical spine
Term
Intertransversii Cervicis
Definition
C3-C8 Spinal (ventral rami to anterior, dorsal rami to posterior)

Cervical extension (bilateral)
Lateral bending of cervical spine to same side
Term
Rotatores Cervicis
Definition
C3-C8 Spinal nerves

Rotation of cervical spine to opposite side
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