Labeled Spinal Cord Model Anatomy. the spinal cord is a mass of nervous tissue that extends inferiorly from the brain stem through the vertebral canal of the cervical and thoracic regions, ending around the t12 or l1 vertebra. it is a long tube about 18 inches (45 cm) in length and around half an inch (1 cm) in diameter at its widest point. The spinal cord is part of the central nervous system (cns). it is situated inside the vertebral canal of the vertebral column. during development, there’s a disproportion between spinal cord growth and vertebral column growth. the spinal cord finishes growing at the age of 4, while the vertebral column finishes growing at age 14 18.
Gross Anatomy Of Spinal Cord The vertebra provides several crucial functions to the body. first, it acts as a structural component of the spine, bearing body weight, anchoring muscles and the spinal cord, and forming joints with other vertebrae and ribs that allow the torso and neck to move. second, the vertebra protects the delicate tissues of the spinal cord by. Quick facts: injuries of the spine and spinal cord. herniated disk. sciatica. lumbar spinal stenosis. cervical spinal stenosis. low back pain. neck pain. overview of spinal cord disorders. injuries of the spinal cord and vertebrae. Spinal nerves can have a grey ramus communicans and a white ramus communicans. grey rami communicantes exist at all levels of the spinal cord. they carry postganglionic nerve fibres from the paravertebral ganglia in the sympathetic chain to their target organ. white rami communicantes only exit the spinal cord between the levels of t1 l2. The spinal cord is a tubular bundle of nervous tissue and supporting cells that extends from the brainstem to the lumbar vertebrae. together, the spinal cord and the brain form the central nervous system. in this article, we shall examine the macroscopic anatomy of the spinal cord – its structure, membranous coverings and blood supply.
Comments are closed.