Topic 11 spinal cord PRESENTATION 2009

Topic 11 spinal cord PRESENTATION 2009 - The Spinal Cord...

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Topic 11 Lecture outline The Spinal Cord
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The spinal cord y Provides a vital link between the brain and the rest of the body y Exhibits some functional independence from the brain y The spinal cord and its attached spinal nerves serve two important functions y _________________________________ y _________________________________
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Structure of the spinal cord y A typical adult spinal cord ranges 42-45 cm/16-18 inches in length y Viewed in cross section it is roughly cylindrical, but slightly flattened postero-anteriorly y Has two thickenings called ____________________ y Cervical C4-T1 y Lumbar T9-T12 y Its external surface has two longitudinal depressions y ___________________ y ___________________
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Structure of the spinal cord y The spinal cord is shorter than the vertebral canal that houses it y The tapering inferior end of spinal cord is called __________________ and it marks the official end of the spinal cord y Inferior to this point, nerve roots ( __________________ ) project inferiorly from the spinal cord y Within the cauda equina is the ___________________ , a thin strand of pia mater that helps anchor the conus medullaris to the coccyx
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Location and distribution of gray matter y In the spinal cord, IT is located _________________ y Its shape resembles a letter H or a butterfly y Its color comes from lack of myelin sheath on dendrites and somas of neurons y The gray matter can be subdivided into y ___________________ y ___________________ y ___________________ y ___________________
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Location and distribution of white matter y The white matter is ______________ to gray matter y Its color comes from the myelin sheath of axons y White matter is partitioned into three regions on each side y ___________________ y ___________________ y ___________________ y Funiculi are composed of ___________________
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Spinal nerves y The spinal cord is associated with ___________________ that connect CNS to muscles, receptors, glands y Each side of spinal cord contains y 8 cervical y 12 thoracic y 5 lumbar y 5 sacral y 1 coccygeal
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Spinal nerves y Each pair of spinal nerves supplies one ______________ of the spinal cord
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This note was uploaded on 06/05/2011 for the course KINS 2531 taught by Professor Sturges during the Spring '11 term at Georgia Southern University .

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Topic 11 spinal cord PRESENTATION 2009 - The Spinal Cord...

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