What is the spine attached to?
The spine is composed of 33 bones, called vertebrae, divided into five sections: the cervical, thoracic, and lumbar spine sections, and the sacrum and coccyx bones. The cervical section of the spine is made up of the top seven vertebrae in the spine, C1 to C7, and is connected to the base of the skull.
What is attached to the spine for support?
Soft tissues: Ligaments connect the vertebrae to hold the spine in position. Muscles support the back and help you move. Tendons connect muscles to bone and aid movement.
What are the 5 interconnected parts of the spine?
Vertebrae. As mentioned above, our vertebrae are numbered and divided into five regions: cervical, thoracic, lumbar, sacrum, and coccyx.
What is the name of the muscle groups that attach to the spine?
1. Thoracic Erector Spinae group ie Iliocostalis; Longissimus; Spinalis– the main extensor (backward bending) muscle of the thoracic spine, located on either side of the vertebral column. The erector spinae is most massive in the lumbar and thoracic regions.
What part of the spine controls the heart?
Thoracic (mid back) – the main function of the thoracic spine is to hold the rib cage and protect the heart and lungs. The twelve thoracic vertebrae are numbered T1 to T12.
What absorbs shock in the spine?
The intervertebral discs are soft structures which act as shock absorbers between each of the vertebrae (bones) in the spine. A single disc sits between each vertebra.
Which spinal nerves affect which parts of the body?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
How does damage to the spinal cord and nerves affect the other parts of the body?
A spinal cord injury stops the flow of messages below the site of the injury. The closer the injury is to the brain, the more of the body is affected. Injury to the middle of the back usually affects the legs (paraplegia). Injury to the neck can affect the arms, chest, and legs (quadriplegia).
What is L7 in the spine?
The seventh lumbar vertebra (L7) or its caudal articular processes are considered the most frequent sites of fractures, with fracture occurring more commonly than dislocation (Flatt et al., 1974).
The bottom of the spine is called the sacrum. It is made up of several vertebral bodies usually fused together as one. The remaining small bones or ossicles below the sacrum are also fused together and called the tailbone or coccyx.