Putang Ina

Topics: Neuron, Nervous system, Spinal cord Pages: 4 (1203 words) Published: August 28, 2013
Spinal Cord- The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the brain (the medulla oblongata specifically). The brain and spinal cord together make up the central nervous system (CNS). The spinal cord begins at the occipital bone and extends down to the space between the first and second lumbar vertebrae; it does not extend the entire length of the vertebral column. It is around 45 cm (18 in) in men and around 43 cm (17 in) long in women. Also, the spinal cord has a varying width, ranging from 1/2 inch thick in the cervical and lumbar regions to 1/4 inch thick in the thoracic area. The enclosing bony vertebral column protects the relatively shorter spinal cord. The spinal cord functions primarily in the transmission of neural signals between the brain and the rest of the body but also contains neural circuits that can independently control numerous reflexes and central pattern generators. The spinal cord has three major functions: as a conduit for motor information, which travels down the spinal cord, as a conduit for sensory information in the reverse direction, and finally as a center for coordinating certain reflexes.

Spinal Cord Function- The spinal cord is basically the "information highway of the body", messages are sent back and forth between the brain and the rest of the body. This information includes touch, temperature, pain, joint position and signals telling muscles to move. It Is Due to Our Spinal Cord that we can perform Reflex Actions, during the time of an emergency the signals instead of going to our brain go to the spinal cord so that the time lapse decreases. Spinal Cord Helps us to be straight unlike other mammals who are not able to stand straight as well as sleep on their backs. The spinal cord is comprised of neural pathways. In order for a message to go from the brain to the body, that message, or impulse, is passed from neuron to neuron through junctions called synapses. This...
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