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Neck Muscles
Question | Answer |
---|---|
O:Trapezius | Upper: EOP, nuchal line and nuchal ligament. Middle: SPs of C7- T5 Lower: SPs of T5-T12 |
I: Trapezius | Lateral 1/3 of clavicle, acromium, spine of scap |
A: Trapezius | Elevation and retraction (adduction) of scap. Upward rotation of scap. Lateral flexion and extension of head. Stabilizes scap for arm movement. |
N: Trapezius | Spinal accessory (CN Xl) |
O: Levator Scapulae | TPs of C1-C4 |
I: Levator Scapulae | Medial border of scapula |
A: Levator Scapulae | Elevation of scapula. Extension and lateral flexion of neck. |
N: Levator Scapulae | Dorsal scapular nerve (C3, C4, C5) |
O: Sternocleidomastoid (SCM) | Sternal head: manubrium of sternum. Clavicular head:medial portion of clavicle |
I: Sternocleidomastoid (SCM) | Mastoid process of temporal bone |
A: SCM | Rotation of head to contralateral side. Lateral flexion to ipsilateral side. |
N: SCM | Motor: spinal accessory. Sensory: ventral rami of C2-C3 |
O: Splenius Capitis | Spinal process of C3-T4 nuchal ligaments |
I: Spenius Capitis | Mastoid process of temporal bone, occipital bone |
A: Splenius Capitis |