Flashcards in Module Exam 5: Spinal Cord Deck (89)
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Vertebral column
Cervical 7, Thoracic 12, Lumbar 5, Sacral 1 & Coccygeal 1
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Parts of the vertebra
Posterior segment, Intervertebral disc & Anterior segment "PIA"
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Lies within the vertebral canal
Spinal cord
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Three surrounding fibrous membranes that protects the Spinal cord
Meninges
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Spinal cord is held in position by __________ on each side and _________ inferiorly.
Denticulate ligaments. Filum terminale.
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In spinal cord, segmented and paired posterior/sensory and anterior/motor roots corresponding to each segment of the cord leave the vertebral canal through the
Intervertebral foramina
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Shorter than the vertebral column and terminates in the adult at the level of
Spinal cord. Lower border of first lumbar vertebra.
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Spinal cord components
Gray & white matter and central canal
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Columns in the White Matter
Posterior F, Anterior F & Lateral F. (PAL)
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Each column in the white matter is subdivided into these tracts:
Ascending T, Intersegmental T & Descending T "AID"
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Parts of the Gray Matter
Posterior H, Anterior H & Lateral H "PAL"
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The cell bodies in the gray substance are grouped into clusters of _______.
Nuclei of laminae
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Laminae of Rexed: Located in the posterior horn
Laminae I-VI
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Laminae of Rexed: Located in the lateral horn
Lamina VII
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Laminae of Rexed: Located in the anterior horn
Laminae VIII & IX
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Laminae of Rexed: gray substance surrounding the central canal
Lamina X
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Vascular supply from vertebral
Anterior spinal artery
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Vascular supply paired, from vertebral
Posterior spinal arteries
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Vascular supply of anterior and posterior SC
Radicular arteries
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Vascular supply of aorta
Artery of Adamkiewiscz
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Ascending tract for position sense, 2pt discriminative,vibration sense & stereognosis.
Dorsal/Posterior Column
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Part of the ascending tracts
Dorsal/Posterior column & Spinothalamic tracts
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Tract for pain & temperature
LSTT
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Tract for touch and pressure
ASTT
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Enumerate of Descending tracts
Medial reticulospinal, Anterior corticospinal, Lateral corticospinal, Lateral reticulospinal, Vestibulospinal, Tectospinal & Rubrospinal "MALL VTR"
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Tracts included in the Anterior Funiculus
Vestibulospinal, Anterior Corticospinal, Reticulospinal & Tectospinal "VART"
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Tracts included in the Lateral Funiculus
Lateral corticospinal & Rubrospinal "LR"
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Provides voluntary control of skeletal muscles. Owes its name to the _________ of the primary cortex.
Pyramidal system. Pyramidal cells.
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Pyramidal system consists of
Lateral corticospinal, Anterior corticospinal & Corticobulbar "LAC"
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