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This article looks at the anatomy of the back, including bones, muscles, and nerves. It also covers some common conditions and injuries that can affect the back. Interactive model
Your spine is made up of vertebrae (bones), disks, joints, soft tissues, nerves and your spinal cord. Exercises can strengthen the core muscles that support your spine and prevent back injuries and pain.
Learn about the anatomy of the back region - including the vertebral column, spinal cord and muscles of the back.
The human back, also called the dorsum (pl.: dorsa), is the large posterior area of the human body, rising from the top of the buttocks to the back of the neck. [1] It is the surface of the body opposite from the chest and the abdomen .
Attachments, innervation and functions of the superficial muscles of the back. The back is the body region between the neck and the gluteal regions. It comprises the vertebral column (spine) and two compartments of back muscles; extrinsic and intrinsic.
The back performs several important functions including housing and protecting the spinal cord, holding the body and head upright, bearing the weight of the upper body, transmitting this weight to the pelvic girdle and lower limbs when standing or walking, and facilitating the movements of the upper and lower limbs.
The entire spinal column consists of 33 individual bones called vertebrae, plus two sections of naturally fused vertebrae – the sacrum and the coccyx – located at the very bottom of the spine. All of these bones and sections are important to the spine’s ability to function properly.
Overview. Your back muscles start just under your skull, cover your shoulders and run to just above your hips. What are the muscles of the back? Your back has many different muscles. Some support your spine and trunk (your midsection or torso). Others help you stand up, maintain your posture and help you move. Some even help you breathe.
The back consists of skin and fascia overlying the spine, scapulae, muscle groups, nerves, vessels, and the presacral vertebrae. The primary movements of the back are flexion/extension, lateral bending, and rotation of the trunk.
The spine, also known as the vertebral column or spinal column, is a column of 26 bones in an adult body --- 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx.