Term
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Definition
the spinal cord extends from the _____ to _____
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Term
increased numbers of motor neurons in the gray matter of the cervical and lumbar regions.
These neurons are needed to innervate the upper and lower limbs.
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Definition
| Changes in the cross-sectional shape of the spinal cord are mainly due to what? |
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Term
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Definition
THE SPINAL CORD DEVELOPS FROM
THE _______ PORTION OF THE
NEURAL TUBE
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Term
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Definition
| In one type of spina bifida, _________ form as a result of failure of the neural groove to close. |
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Term
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Definition
More common forms of spina bifida result from failure of the _______ to enclose the spinal cord.
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Term
MENINGOMYELOCELE A.K.A. SPINA BIFIDA CYSTICA
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Definition
– MOST COMMON FORM OF SPINA BIFIDA
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Term
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Definition
NEUROEPITHELIUM GIVES RISE TO ALL
SPINAL CORD ________ & ______
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Term
1.NEUROEPITHELIAL LAYER
2.MANTLE LAYER
3.MARGINAL LAYER
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Definition
NEUROEPITHELIAL CELLS DIVIDE AND DIFFERENTIATE into what 3 layers?
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Term
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Definition
| In the spinal cord white matter, the ascending tracts are _________ and the descending tracts are _______ |
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Term
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Definition
GENERAL SENSORY PATHWAYS TERMINATE IN THE ____________.
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Term
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Definition
SMALL DIAMETER FIBERS THAT TRANSMIT SENSORY INFORMATION SLOWLY AND
WITHOUT PRECISE LOCALIZATION
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Term
1. LATERAL SPINOTHALAMIC TRACT
2.Anterior SPINOTHALAMIC TRACT |
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Definition
| What are the two tracts of the SPINOTHALAMIC SYSTEM? |
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Term
LATERAL SPINOTHALAMIC TRACT
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Definition
| the ________ tract senses pain and temperature |
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Term
anterior SPINOTHALAMIC TRACT
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Definition
| the ________ tract senses crude touch |
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Term
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Definition
CONSISTS OF LARGE DIAMETER FIBERS THAT TRANSMIT SENSORY INFORMATION WITH GREAT SPEED AND PRECISE LOCALIZATION
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Term
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Definition
DORSAL COLUMN SYSTEM from the LOWER 1/2 of the body
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Term
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Definition
DORSAL COLUMN SYSTEM
from the UPPER 1/2 of the body
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Term
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Definition
| CONSISTS OF FIBERS THAT TRANSMIT UNCONSCIOUS PROPRIOCEPTIVE INFORMATION TO THE CEREBELLUM: ALSO TRANSMIT SOME INFORMATION ON PAIN, CRUDE TOUCH AND PRESSURE |
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Term
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Definition
INCLUDES ALL FIBERS ORIGINATING IN THE PRECENTRAL GYRUS AND PROJECTING ONTO SUBCORTICAL STRUCTURES
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Term
LATERAL
CORTICOSPINAL TRACT
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Definition
(80% OF CORTICOSPINAL FIBERS)
FIBERS CROSS OVER TO OPPOSITE SIDE OF THE CNS IN THE PYRAMIDAL DECUSSATION IN THE MEDULLA
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Term
ANTERIOR
CORTICOSPINAL TRACT
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Definition
(20% OF CORTICOSPINAL FIBERS)
CROSSING OVER OCCURS IN THE SPINAL CORD AT THE LEVEL OF SYNAPSE. FIBERS PASS THROUGH THE MEDULLARY PYRAMIDS WITHOUT CROSSING OVER.
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Term
1. RUBROSPINAL TRACT
2. VESTIBULOSPINAL TRACT
3. RETICULOSPINAL TRACT
4. TECTOSPINAL TRACT
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Definition
| Name the four extrapyrmaidal tracts. |
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Term
| subconcious movements, posture |
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Definition
| What is the function of spinal cord white matter? |
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Term
UPPER CERVICAL CORD LESION
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Definition
SPASTIC QUADRI- PLEGIA, HYPER-REFLEXIA, and LOSS OF SENSATION BELOW THE LEVEL OF THE LESION are symptoms of
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Term
LOWER CERVICAL CORD LESION
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Definition
FLACCID PARALYSIS OF UPPER LIMBS, SPASTIC PARALYSIS OF LOWER LIMBS, HYPO-REFLEXIA OF UPPER LIMBS, HYPER-REFLEXIA OF LOWER LIMB,
LOSS OF SENSATION BELOW THE LEVEL OF
THE LESION Are symptoms of?
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Term
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Definition
SPASTIC PARAPLEGIA, HYPER- REFLEXIA,
BELOW LEVEL OF THE LESION, LOSS OF SENSATION BELOW THE LEVEL OF THE LESION are symptoms of?
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Term
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Definition
FLACCID PARALYSIS OF LOWER EXTREMITIES, HYPOREFLEXIA OF LOWER EXTREMITIES, LOSS OF SENSATION BELOW THE LEVEL OF THE LESION are symptoms of?
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