costovertebralis

The costovertebralis is a muscle located in the back of the human body, specifically in the thorax. It is a paired muscle, meaning there is one on each side of the spine. The costovertebralis muscle originates from the transverse processes of the thoracic vertebrae and inserts onto the costal cartilage of the ribs. Its primary function is to elevate the ribs during inspiration, which is an essential part of the breathing process. The costovertebralis muscle is innervated by the intercostal nerves, which are branches of the spinal nerves. This muscle plays a crucial role in the mechanics of breathing and is important for maintaining proper respiratory function.