Font size
WorksheetsThe Sensory Super Highway Clinical Challenge
Total questions: 18
Worksheet time: 11mins
Scenario 1:
A 50-year-old man was involved in a car accident and sustained a spinal cord injury at the T8 level. On clinical examination, the patient exhibits the following findings:
Loss of fine touch and proprioception in his right leg
Intact pain and temperature sensation in the right leg
Intact fine touch and proprioception in the left leg
Question 1:
Which specific tract of the spinal cord is affected in this patient?
Right dorsal column at T8
Right lateral corticospinal tract at T8
Right anterior spinothalamic tract at T8
Question 2:
Why does the loss of fine touch and proprioception occur on the same side of the lesion?
The dorsal column fibers decussate immediately at the level of the spinal cord
The spinothalamic tract decussates in the medulla
The injury affects both dorsal and spinothalamic tracts
The fibers remain ipsilateral until they decussate in the medulla
Sensory input from the periphery is processed in the spinal cord
Question 3:
Which part of the dorsal column carries sensory information from the lower limb, including the affected right leg?
Fasciculus Cuneatus
Fasciculus Gracilis
Lateral leminiscus
Which part of the dorsal column carries sensory information from the upper limb?
Lateral leminiscus
Medial lemniscus
Fasciculus Gracilis
Fasciculus Cuneatus
Scenario 2:
A 60-year-old woman complains of burning pain in her left leg and foot. MRI reveals a tumor compressing the right anterolateral quadrant of the spinal cord at the L2 level.
Question 1:
Why does the patient experience burning pain in the left leg if the lesion is on the right side of the spinal cord?
Tumor compresses both sides of the spinal cord
Spinothalamic fibers decussate at the level of the spinal cord
Pain signals are transmitted through the dorsal columns
Pain perception bypasses the spinothalamic tract
Spinothalamic fibers cross in the Medulla
Question 2:
Which sensory modalities are primarily affected by this lesion?
Pain and temperature
Regarding the spinothalamic tract, a slowly developing disease affecting the spinal cord centrally would spare which fibers initially?
cervical fibers
thoracic fibers
lumbar fibers
sacral fibers
A patient presents with loss of pain and temperature sensation on the left side of the body beginning two segments below the level of a spinal cord lesion. Vibration and proprioception are preserved.
Which structure is most likely damaged?
Left dorsal column
Right spinothalamic tract
Both the spinothalamic tract and dorsal column–medial lemniscus pathway relay in which thalamic nucleus before reaching the cerebral cortex?
The primary cortical area receiving sensory information from both the spinothalamic and DCML pathways is the:
Premotor cortex (superior temporal gyrus)
Primary visual cortex (occipital lobe)
Primary motor cortex (frontal lobe)
Primary somatosensory cortex (postcentral gyrus)
In the spinothalamic tract, cervical fibers ascend laterally in the spinal cord with respect to sacral fibers?
true
false
Scenario 3: A 45-year-old man presents with a loss of pain and temperature sensation on the right side of his body below the level of T10. He also reports a loss of proprioception and vibration sense on the left side. Motor examination shows UMN signs on the right side.
Question 1:
What type of lesion is this patient most likely experiencing?
Anterior cord syndrome
Posterior cord syndrome
Brown-Séquard syndrome
Complete spinal cord transection
Central cord syndrome
Question 2:
What type of lesion best explains this pattern?
Left-sided hemisection of the spinal cord
Right-sided hemisection of the spinal cord
Anterior cord syndrome
Complete spinal cord injury at T 10
Question 3: Which sensory deficit is typically observed on the opposite side (contralateral) to the lesion in Brown-Séquard Syndrome?
Loss of pain sensation
Loss of fine touch sensation
Loss of vibration sensation
Loss of prorioception
Question 4:
Which sensory deficit is typically observed on the same side (ipsilateral) as the lesion in Brown-Séquard Syndrome?
Loss of pain sensation
Loss of crude touch
Loss of temperature sensation
Loss of proprioception
draw a conceptual diagram of the dorsal column
How would u rate today's activity?
excellent
good
average
bad
Did u find this type of learning useful?
yes
no
maybe
