The spinalis cervicis is a muscle located in the neck region, part of the larger group known as the erector spinae. It plays a crucial role in supporting and stabilizing the cervical spine, which consists of the upper seven vertebrae. This muscle helps in extending and rotating the neck, allowing for a range of head movements. Anatomically, the spinalis cervicis is situated between the spinalis thoracis and the semispinalis cervicis. It originates from the spinous processes of the upper thoracic vertebrae and inserts into the spinous processes of the cervical vertebrae. Proper functioning of this muscle is essential for maintaining good posture and preventing neck pain.