Term
Sternocleidomastoid
Attachments:
Innervation:
Actions at the cervical intervertebral (I-V) joints: |
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Definition
Attachments:
Superior: mastoid process and lateral part of superiot nuchal line (occipital bone)
Interior: manubrium of the sternum and medial third of the clavicle
Innervation:
1. Motor innervation: spinal portion of (spinal) accessory nerve
2. Sensory innervation to the muscles is by branches from cervical spinal nerves (C2 & C3)
Actions at the cervical intervertebral (I-V) joints:
Flexion (mid and lower only), extension (upper, A-A and A-O only), Abduction/lateral, flexion/side bend, rotation to the opposite side |
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Term
Anterior Scalene
Attachments:
Innervation:
Actions at the cervical intervertebral (I-V) joints: |
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Definition
Attachments:
Superior: transverse processes, C3-C6
Inferior: 1st rib, medial portion
Innervation:ventral rami, cervical spinal nerves
Actions at the cervical intervertebral (I-V) joints:
Abduction/lateral flexion/side bend, flexion, rotation to the opposite side |
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Term
Middle Scalene
Attachments:
Innervation:
Actions at the cervical intervertebral (I-V) joints: |
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Definition
Attachments:
Superior: transverse processess, C1-C6
Inferior: 1st rib, central portion
Innervation:
ventral rami, cervical spinal nerves
Actions at the cervical intervertebral (I-V) joints:
Abduction/lateral flexion/side bend, Flexion |
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Term
Posterior Scalene
Attachments:
Innervation:
Actions at the cervical intervertebral (I-V) joints: |
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Definition
Attachments:
Superior: transverse processes, C5 & C6
Inferior: 2nd rib
Innervation:
ventral rami, cervical spinal nerves
Actions at the cervical intervertebral (I-V) joints:
abduction/lateral flexion/side bend |
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Term
Longus Capitis
Attachments:
Innervation:
Actions at the cervical intervertebral (I-V) joints: |
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Definition
Attachments:
Superior: occipital bone
Inferior: transverse processes, C3-C6
Innervation:
ventral rami, cervical spinal nerves C1-C3
Actions at the cervical intervertebral (I-V) joints:
Flexion, Abduction/lateral flexion/side bend |
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Term
Longus Colli
Attachments:
Innervation:
Actions at the cervical intervertebral (I-V) joints: |
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Definition
Attachments:
Superior: anterior aspect of C1-C4 and transverse processses of C5-C6
Inferior: C3-T3, anterior aspect of vertebral bodies & transverse processes
Innervation:
ventral rami, cervical spinal nerves C2-C6
Actions at the cervical intervertebral (I-V) joints:
flexion, abduction/lateral flexion/side bend |
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Term
Rectus Capitis Anterior
Attachments:
Innervation:
Actions at the A-O joint: |
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Definition
Attachments:
Superior: occipital bone
Inferior: transverse process Atlas
Innervation:
ventral rami, cervical spinal nerves C1-C2
Actions at the A-O joint:
flexion, abduction/lateral flexion/side bend (minimal) |
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Term
Rectus Capitis Lateralis
Attachments:
Innervation:
Actions at the A-O joint: |
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Definition
Attachments:
Superior: occipital bone
Inferior:transverse process Atlas
Innervation:
ventral rami, cervical spinal nerves C1-C2
Actions at the A-O joint:
abduction/lateral flexion/ side bend |
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