Spinal cord anatomy and physiology pdf
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Spinal nerve , in vertebrates, any one of many paired peripheral nerves that arise from the spinal cord. In humans there are 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Each pair connects the spinal cord with a specific region of the body. Near the spinal cord each spinal nerve branches into two roots. One, composed of sensory fibres , enters the spinal cord via the dorsal root; its cell bodies lie in a spinal ganglion that is outside the spinal cord. The other, composed of motor fibres , leaves the spinal cord via the ventral root; its cell bodies lie in specific areas of the spinal cord itself. Spinal nerve Article Media Additional Info.
A guide to the spinal cord: Anatomy and injuries
The spinal cord is a long bundle of nerves and cells that extends from the lower portion of the brain to the lower back. It carries signals between the brain and the rest of the body. This article covers the key anatomy of the spinal cord and its functions. Below is a 3D model of the spinal cord, which is fully interactive. Explore the 3D model using your mouse pad or touchscreen to understand more about the spinal cord. The length of the spinal cord varies from person to person.
Request PDF | On Jun 30, , Antal Nógrádi and others published Anatomy and Physiology of the Spinal Cord | Find, read and cite all the.
The nervous system is a complex network of nerves and nerve cells neurons that carry signals or messages to and from the brain and spinal cord to different parts of the body. It is made up of the central nervous system and the peripheral nervous system. The central nervous system CNS is made up of the brain and spinal cord. The brain controls most body functions, including awareness, movements, sensations, thoughts, speech and memory. The spinal cord is connected to the brain at the brain stem and is covered by the vertebrae of the spine.
Vertebral column , also called spinal column , spine , or backbone , in vertebrate animals, the flexible column extending from neck to tail, made of a series of bones, the vertebrae. The major function of the vertebral column is protection of the spinal cord; it also provides stiffening for the body and attachment for the pectoral and pelvic girdles and many muscles.