👉 Orcinus is a Latin term for a group of large, elongated muscles that lie along the lower part of the spine and are located in the neck. These muscles are known for their role in supporting the head and neck, as well as regulating posture and movement. The exact function and anatomy of the orcinus vary depending on the species and individual, but it is typically associated with maintaining balance and posture, helping to stabilize the head and neck during movement. It is also thought to play