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@ Neck Muscles
Capitus and Cervicis Muscles
Question | Answer |
---|---|
Splenius Cervicis origin | Spinous process of T3-T6 |
Splenius Cervicis insertion | Transverse process of C1-3 |
Splenius Cervicis action | Cervical Spine extension Ipsilateral rotation and flexion |
Splenius Capitis origin | spinous process of vertebrae C7-T3, nuchal ligament |
Splenius Capitis insertion | lateral superior nuchal line of occipital bone, mastoid process of temporal bone |
Splenius Capitis action | bilateral: extends head and neck unilateral: lateral flexion and rotation of head |
semispinalis capitis origin | articular processes of vertebrae C4-C7 transverse processes of T1-T6 |
semispinalis capitis insertion | between superior and inferior nuchal lines of occipital bones |
semispinalis capitis action | bilateral: extension of head, cervical and thoracic spine unilateral: rotation of head contralateral: rotation of cervical and thoracic spine |
semispinalis cervicis origin | transverse process T1-T6 |
semispinalis cervicis insertion | spinous processes of vertebrae C2-C5 |
semispinalis cervicis action | bilateral: extension of head, cervical and thoracic spine unilateral: lateral flexion of head, cervical, and thoracic spine (ipsilateral) rotation of head, cervical and thoracic spine (contralateral) |