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Spine Anatomy
Os & Is: SCM-Obliqus Capitus Inferior
Question | Answer |
---|---|
Sternocleidomastoid PA: | Mastoid process and lateral half of superior nuchal line. |
Sternocleidomastoid DA: | Sternal head: Manubrium of sternum, Clavicular head: Medial third of clavicle. |
Sternocleidomastoid N: | CN XI: Spinal accessory n, and VR C2, C3. |
Sternocleidomastoid A: | Bilaterally: Flexes the neck, Unilaterally: Ipsilateral lateral neck flexion and contralateral rotation. |
Scalenus Anterior SA: | TP C4-C6. |
Scalenus Anterior IA: | Scalene tubercle of 1st rib. |
Scalenus Anterior N: | C VR. |
Scalenus Anterior A: | neck flexion, ipsilateral lateral flexion, contralateral rotation; elevates 1st rib during forced inspiration. |
Scalenus Medius SA: | TP C4-C6. |
Scalenus Medius IA: | 1st rib, posterior to groove for subclavian artery. |
Scalenus Medius N: | C VR. |
Scalenus Medius A: | Laterally flexes neck; elevates 1st rib during forced inspiration. |
Scalenus Posterior SA: | TP C4-C6. |
Scalenus Posterior IA: | 2nd rib. |
Scalenus Posterior N: | C VR. |
Scalenus Posterior A: | Laterally flexes neck; elevates 2nd rib during forced inspiration. |
Rectus Capitus Posterior Major O: | SP C2. |
Rectus Capitus Posterior Major I: | Lateral aspect of the inferior nuchal line. |
Rectus Capitus Posterior Major N: | DR C1 (Suboccipital n.). |
Rectus Capitus Posterior Major A: | Extends head, ipsilateral rotation. |
Rectus Capitus Posterior Minor O: | Posterior tubercle of C1. |
Rectus Capitus Posterior Minor I: | Medial aspect of inferior nuchal line. |
Rectus Capitus Posterior Minor N: | DR C1 (Suboccipital n.). |
Rectus Capitus Posterior Minor A: | Extends head, ipsilateral rotation. |
Obliqus Capitus Superior O: | TP C1. |
Obliqus Capitus Superior I: | Between superior and inferior nuchal lines. |
Obliqus Capitus Superior N: | DR C1 (Suboccipital n.). |
Obliqus Capitus Superior A: | Extension and lateral flexion of head. |
Obliqus Capitus Inferior O: | SP C2. |
Obliqus Capitus Inferior I: | TP C1. |
Obliqus Capitus Inferior N: | DR C1 (Suboccipital n.). |
Obliqus Capitus Inferior A: | Rotates atlas, turning head ipsilaterally. |