Origin
Sacrum, iliac crest, posterior superior iliac spine, erector spinae aponeurosis.
Insertion
Spinous processes of cervical, thoracic, and lumbar vertebrae.
Blood supply
Vertebral artery, occipital artery, posterior intercostal arteries, lateral sacral artery, lumbar arteries.
Nerve supply
Spinal nerves.
Action
It helps to bend the back backwards.
Disease/Injury
If these muscles are damaged, it leads to acute low back pain and reduces the stability of backbone.
Muscle Exercise
To strengthen this muscle, you can perform dorsal raises. Lie down on the exercise ball on your stomach. With both the hands and feet on the floor, balance yourself with the help of hip. Raise your head with upper body so that this muscle in the back gets stretched. While doing this, contract the stomach muscle. Repeat this 10 times.
Interesting facts
NA
