The interspinales muscles are a group of small, thin muscles located between the spinous processes of the vertebrae in the spinal column. They are responsible for maintaining the normal curvature of the spine and providing stability to the spinal column, and are important for activities such as standing, walking, and lifting objects. The interspinales muscles originate at the spinous processes of the vertebrae and then insert at the adjacent spinous processes.

They are important for maintaining the normal curvature of the spine and providing stability to the spinal column. This movement is important for activities such as standing, walking, and lifting objects, as it helps to maintain an upright posture and keep the spine in a neutral position. The interspinales muscles also play a role in protecting the spinal cord and surrounding nerves from injury, as they help to limit excessive movement of the vertebrae.

These are active whenever we stand, walk, or perform any other activity that involves maintaining the normal curvature of the spine. They are also used when we lift objects, climb stairs, or perform movements that require stability of the spinal column, such as standing on one leg or performing single-leg exercises.