The Spinal Cord Touro Neuroscience Quiz assesses knowledge of spinal cord anatomy, focusing on structures, nerve arrangements, and vascular supply. It tests understanding crucial for medical students and professionals in neurology and neurosurgery.
VII
I-VI
X
VIII & IX
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True
False
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Thalamus
Medulla
Midbrain
Immediately in the spinal cord segment
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True
False
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True
False
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Receptors for hearing and vision
Mechanoreceptors and nociceptors
Receptors in skin, muscle, tendons, and joints
Receptors in smooth muscle, cardiac muscle and glands
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Spinocerebellar
Corticospinal
Dorsal column
Anterolateral system
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Discriminative touch, vibration, joint position
Sensory from the upper extremities
Skilled, volitional movement
Crude touch, pain, temperature
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Posteromarginal nucleus, C8-L2
Substantia gelatinosa, T4-L2
Nucleus dorsalis, C8-L2
Interomediolateral cell column, T1-L2
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True
False
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Sub-pia mater
Subarachnoid
Subdural
Epidural
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C1-C4, cervical plexus for head and neck region making the dorsal gray matter bigger.
C1-C4, brachial plexus for upper limbs making the dorsal gray matter bigger
C4-T1, brachial plexus for upper limbs making the dorsal gray matter bigger
C4-T1, brachial plexus for respiratory function making the dorsal gray matter bigger
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Somatic motor
Phrenic
Nucleus dorsalis
Cervical autonomic
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No, because the spinal cord white matter does not descend as far as S3
No, because this white matter tract is only above T6 as it has signals from upper extremities
Yes, because it is continuous through the entire spinal cord
Yes, because this white matter has fibers that convey information from the lower extremities
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Anterolateral tract from dorsal columns
Dorsal columns
Anterolateral tract from the corticospinal tract
Corticospinal tract
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Anterior medial fissure
Anterolateral tract
Anterolateral sulcus
Anterior medial sulcus
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Signal crosses through the dorsal horn to directly stimulate the withdrawl from nocioceptive stimulis by activating extensors and inhibiting flexors in ipsolateral leg.
Signal transversing the midline and activation of extensors contralaterally to support the body on the opposite leg.
The nocioceptive signal synapses on the contralateral side and so the withdrawl signal must cross the midline to activate the extensors and inhibit the flexors in the correct leg
Motor pathways cross in the intrafusal muscles while delivering withdrawl signal to extensors.
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False
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Contralateral, ipsolateral
Opposite, same
Intrafusal muscles, extrafusal muscles
Same, opposite
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Lower limbs
Respiratory muscles
Upper limbs
Intrinsic back muscles
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VI, ventral horn
VI, dorsal horn
VII, intermediate zone
VII, central canal
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Denticulate ligaments
Collagen fibers of subarachnoid space
Filum terminale
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Excitatory to extensor (antigravity) musculature and act to maintain body posture and orientation in space
Unconscious coordination signals
Flex arms and forearms
Extensor muscle posture and tone
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Quiz Review Timeline (Updated): Mar 21, 2023 +
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