Origin
It arises from the 1st cervical vertebra (atlas).
Insertion
Inferior nuchal line.
Blood supply
Vertebral artery, occipital artery.
Nerve supply
Suboccipital nerve.
Action
It helps to bend the head backwards and sideways.
Disease/Injury
Overuse and incorrect posture can cause pain and discomfort in head and neck region.
Muscle Exercise
Whilst sitting straight, bend your neck forward, hold for 5 seconds and repeat. Now do the same movement, but bending your neck backwards.
Interesting facts
NA
