| Term 
 
        | What is the Gross anatomy of the Spinal Cord? |  | Definition 
 
        | • Part of the central nervous system. • Approximately 45 cm (18 in.) in length. • Extends from the foramen magnum to the first or second lumbar vertebrae. |  | 
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        | Term 
 
        | What are the regions of the spinal cord? |  | Definition 
 
        | • Four regions (made from a total of 31 segments, correspond with spinal nerves) • Cervical (C1-C8) • Thoracic (T1-T12) • Lumbar (L1-T5) • Sacral (S1-S5) • Each region contains tracts associated with that particular segment and those inferior to it. |  | 
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        | Term 
 
        | What is Enlargements that is part of the spinal cord landmarks? |  | Definition 
 
        | • Areas of the spinal cord where gray matter is increased because there are many interneurons for relaying sensory information and coordinating motor information.   |  | 
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        | Term 
 
        | What is the Cervical enlargement that is part of the enlargement? |  | Definition 
 
        | - Provides innervation to pectoral girdle and upper limbs. |  | 
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