Spinal pathways
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- Question
- Answer
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- At the cervical level of the spinal cord, the axons forming the dorsal column are divided into 2 bundles: the medially situated [...] and the laterally situated [...].
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- Which ascending pathway transmits information about fine discriminative touch?
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- Which ascending pathway transmits information about vibration?
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- Which ascending pathways transmit information about proprioception (2)?
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- Which ascending pathway transmits information about pain?
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- Which ascending pathway transmits information about temperature?
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- Which ascending pathways transmit information about crude touch (2)?
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- Which kind of information does the dorsal column-medial lemniscus ascending pathway transmit (3)?
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- Which kind of information does the spinothalamic ascending pathway transmit (3)?
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- Which kind of information does the spinocerebellar ascending pathway transmit (2)?
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- At which level of the CNS do sensory neurons which ascend the dorsal column-medial lemniscus pathway decussate?
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- The first synapse of the spinothalamic pathway is in the [...] of the [...].
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- The second synapse of the spinothalamic pathway is in the [...] of the [...].
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- The third synapse of the spinothalamic pathway is in the [...].
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- At which level of the CNS do sensory neurons which ascend the spinothalamic pathway decussate?
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- The first synapse of the dorsal column-medial lemniscus pathway is in the [...].
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- The second synapse of the dorsal column-medial lemniscus pathway is in the [...] of the [...].
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- The third synapse of the dorsal column-medial lemniscus pathway is in the [...].
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- The cuneate fasciculus of the dorsal column-medial lemniscus pathway carries sensory information from which part of the body?
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- The gracile fasciculus of the dorsal column-medial lemniscus pathway carries sensory information from which part of the body?
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- How many synapses are there in the dorsal column-medial lemniscus pathway?
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- How many synapses are there in the spinothalamic pathway?
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- How many synapses are there in the spinocerebellar pathway?
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- The first synapse of the spinocerebellar pathway is in the [...].
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- The second synapse of the spinocerebellar pathway is in the [...].
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- At which level of the CNS do sensory neurons which ascend the spinocerebellar pathway decussate?
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- What are the 2 routes of the spinocerebellar pathway?
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- The non-decussating route of the spinocerebellar pathway is [...]al.
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- The decussating route of the spinocerebellar pathway is [...]al.
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- Where does the dorsal route of the spinocerebellar pathway enter the cerebellum?
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- Where does the ventral route of the spinocerebellar pathway enter the cerebellum?
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- Afferents in the spinothalamic tract may travel up or down several spinal segments in [...], meaning that a lesion to the spinal cord may only start affecting sensation several segments below the lesion.
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- The [...] is the major descending pathway through which information descends from the cortex to the spinal cord.
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- From which 3 areas of the cortex do neurons come from to form the corticospinal tract?
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- What is also called the pyramidal system?
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- Is the corticospinal tract found in animals other than mammals?
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- What are the 3 types of neurons in the corticospinal tract?
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- How many synapses are found in a corticospinal tract?
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- Where do the neurons of the corticospinal tract decussate?
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- At the pyramidal decussation, [...]% of fibres cross to make the lateral corticospinal tract.
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- At the pyramidal decussation, [...]% of fibres remain ipsilateral to make the anterior corticospinal tract.
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- Through which area of white matter in the brain do the fibres of the corticospinal tract travel before reaching the brainstem?
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- Lesion to upper motor neurons of the corticospinal tract will cause [...] paralysis.
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- Lesion to lower motor neurons of the corticospinal tract will cause [...] paralysis.
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- Lesion to upper motor neurons of the corticospinal tract will [...]lateral paralysis of the body below the lesion.
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- Lesion to lower motor neurons of the corticospinal tract will [...]lateral paralysis of the body at the affected level.
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- At the pyramidal decussation, 85% of fibres cross to make the [...] tract.
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- At the pyramidal decussation, 15% of fibres remain ipsilateral to make the [...].
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- Although it is not involved in general pain perception, the [ascending pathway] plays a role in the relay of visceral pain perception.
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- What are the 3 tracts of efferent neurons which pass through the internal capsule?
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- Where in the CNS does the corticospinal tract divide into an anterior and a lateral tract?
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- The [...] tract is the descending pathway through which information travels from the motor cortex to the brainstem motor nuclei.
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- Syringomyelia commonly damages the [...] fibres of the [...] tract.
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- The VPL nucleus of the thalamus receives inputs from the [...] pathway and the [...] pathway.
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- The [...] nucleus of the thalamus receives inputs from the dorsal column-medial lemniscus pathway and the spinothalamic pathway.
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