Spinal Cord Syndromes: CCS, Brown-Sequard & More
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Questions and Answers

Why does Central Cord Syndrome (CCS) typically result in greater motor weakness in the upper limbs compared to the lower limbs?

  • The spinothalamic tract, responsible for motor control, is more affected in the cervical region.
  • CCS primarily damages the dorsal columns, which control motor function in the lower extremities.
  • The corticospinal tract fibers controlling the arms are located more medially within the spinal cord. (correct)
  • The corticospinal tract fibers controlling the legs are located more medially within the spinal cord.

A patient presents with bilateral loss of pain and temperature sensation in a 'cape-like' distribution. Which spinal cord syndrome is most likely associated with this presentation?

  • Central Cord Syndrome (correct)
  • Anterior Cord Syndrome
  • Brown-Séquard Syndrome
  • Posterior Cord Syndrome

Which of the following is LEAST likely to be a cause of Central Cord Syndrome (CCS)?

  • Penetrating trauma directly affecting the lateral spinal cord (correct)
  • Compression from cervical spinal stenosis
  • Syringomyelia (fluid-filled cyst in the central canal)
  • Hyperextension injuries, such as whiplash trauma

A patient with Central Cord Syndrome exhibits weakness in both arms and some bladder dysfunction, but intact proprioception in both legs. Which neural structures are MOST likely spared?

<p>Dorsal columns (D)</p> Signup and view all the answers

In Brown-Séquard Syndrome, what sensory deficits would you expect to find ipsilateral to the lesion?

<p>Loss of light touch, vibration, and proprioception (C)</p> Signup and view all the answers

A patient has damage to the right side of their spinal cord (hemicord lesion). Which of the following signs would be expected on the left side of the body below the level of the lesion?

<p>Loss of pain and temperature sensation (C)</p> Signup and view all the answers

A patient presents with weakness in the right arm and loss of fine touch sensation in the right leg, along with loss of pain and temperature sensation in the left leg. Where is the MOST likely location of the spinal cord lesion?

<p>Right-sided hemicord lesion at the thoracic level. (D)</p> Signup and view all the answers

Which of the following impairments helps differentiate between Central Cord Syndrome and Brown-Séquard Syndrome?

<p>Cape-like distribution sensory loss. (A)</p> Signup and view all the answers

A patient presents with loss of light touch, vibration, and proprioception on the right side of their body below the lesion, but no loss of pain or temperature sensation. Which of the following is the MOST likely location of the lesion?

<p>Right dorsal column (C)</p> Signup and view all the answers

A patient with a suspected spinal cord lesion has difficulty maintaining balance when their eyes are closed, and struggles to recognize objects by touch. This presentation is MOST consistent with damage to which pathway?

<p>Dorsal column-medial lemniscus pathway (C)</p> Signup and view all the answers

A patient has an impairment of voluntary motor control on the right side of their body. Where is the MOST likely location of the lesion?

<p>Left lateral corticospinal tract (D)</p> Signup and view all the answers

A patient presents with clumsiness and difficulty coordinating hand movements in their right upper limb, along with impaired light touch and vibration sense in the same limb. Which specific structure is MOST likely affected?

<p>Right fasciculus cuneatus (C)</p> Signup and view all the answers

A patient with a known history of late-stage syphilis begins to exhibit signs of impaired proprioception and sensory ataxia. Which specific spinal cord structure is MOST likely involved in this patient's presentation?

<p>Dorsal column (D)</p> Signup and view all the answers

A patient is diagnosed with subacute combined degeneration due to Vitamin B12 deficiency. What sensory deficits might you expect to see?

<p>Impaired light touch, vibration, and proprioception (B)</p> Signup and view all the answers

A patient with multiple sclerosis experiences a lesion affecting the right lateral corticospinal tract at the level of the medulla. What motor deficits would you MOST likely observe?

<p>Contralateral paralysis of the left lower limb (B)</p> Signup and view all the answers

Following a spinal cord injury, a patient exhibits ipsilateral loss of light touch and proprioception in the right upper limb, but normal motor function. Which of the following is the MOST likely location of the lesion?

<p>Right fasciculus cuneatus at C6 (A)</p> Signup and view all the answers

A patient exhibits spasticity, hyperreflexia, and a positive Babinski sign in their left leg following a spinal cord injury. Assuming an upper motor neuron lesion, where is the MOST likely location of the damage?

<p>Left lateral corticospinal tract above the medullary pyramids (D)</p> Signup and view all the answers

A patient reports a loss of pain and temperature sensation on their right side. Which spinal tract is MOST likely affected by a lesion?

<p>Left lateral spinothalamic tract (D)</p> Signup and view all the answers

A complete transverse spinal cord lesion at the T10 level would MOST likely result in which of the following impairments?

<p>Bilateral loss of voluntary motor function in the lower extremities (D)</p> Signup and view all the answers

Damage to the dorsal columns of the spinal cord typically results in a loss of which sensory modalities?

<p>Light touch, vibration, and proprioception (C)</p> Signup and view all the answers

A patient has an injury that affects the lateral corticospinal tract before it crosses in the medullary pyramids. Which of the following motor deficits would you MOST expect to observe?

<p>Ipsilateral muscle weakness with UMN signs (C)</p> Signup and view all the answers

A patient presents with a spinal cord lesion resulting in the loss of pain and temperature sensation on the right side of the body and impaired light touch sensation on the left side of the body. Where is the lesion MOST likely located?

<p>Hemisection of the spinal cord on the left side. (C)</p> Signup and view all the answers

Following a spinal cord injury, a patient exhibits exaggerated reflexes, increased muscle tone, and spasticity in the lower extremities. This suggests involvement of which of the following?

<p>Upper motor neurons (A)</p> Signup and view all the answers

A patient presents with loss of proprioception on the left side of the body below the level of the umbilicus, but intact motor function. Where is the MOST likely location of the spinal cord lesion?

<p>Left dorsal column (D)</p> Signup and view all the answers

A patient presents with bilateral loss of pain and temperature sensation below the level of a spinal cord injury. Which spinal cord tract is most likely affected by this lesion?

<p>Lateral spinothalamic tract (B)</p> Signup and view all the answers

Which of the following is NOT a common cause of a lateral spinothalamic tract lesion?

<p>Anterior spinal artery occlusion (D)</p> Signup and view all the answers

In Posterior Cord Syndrome, which sensory modalities are typically preserved?

<p>Pain and temperature (A)</p> Signup and view all the answers

A patient with Posterior Cord Syndrome exhibits difficulty walking in dimly lit environments. What is the most likely reason for this?

<p>Loss of proprioception, making it difficult to coordinate movement without visual cues (D)</p> Signup and view all the answers

A patient demonstrates a positive Romberg's sign. Which of the following spinal cord syndromes is most likely associated with this finding?

<p>Posterior Cord Syndrome (C)</p> Signup and view all the answers

Which of the following conditions is NOT typically associated with Posterior Cord Syndrome?

<p>Spinal cord infarction affecting the anterior spinal artery (D)</p> Signup and view all the answers

A patient exhibits loss of fine touch and vibration sense in both legs, but maintains normal motor strength and pain perception. Where is the most probable location of the lesion?

<p>Dorsal columns (D)</p> Signup and view all the answers

In a patient with complete loss of motor and sensory function below a spinal cord lesion, which of the following is the most likely underlying mechanism?

<p>Widespread damage affecting multiple spinal cord tracts (C)</p> Signup and view all the answers

A patient presents with loss of voluntary movement and impaired pain/temperature sensation below the level of spinal cord injury, but retains light touch and proprioception. Which spinal cord syndrome is MOST likely?

<p>Anterior Cord Syndrome (B)</p> Signup and view all the answers

Which vascular event is the MOST common cause of Anterior Cord Syndrome?

<p>Anterior spinal artery occlusion (C)</p> Signup and view all the answers

Which of the following clinical findings would be LEAST expected in a patient diagnosed with Posterior Cord Syndrome?

<p>Paralysis (A)</p> Signup and view all the answers

A patient with Anterior Cord Syndrome exhibits paralysis in both legs following a spinal injury. What additional clinical sign would be expected due to involvement of the corticospinal tract?

<p>Spasticity (D)</p> Signup and view all the answers

A patient with Anterior Cord Syndrome has lost pain and temperature sensation but retains light touch. Which specific anatomical structure(s) is/are spared in this syndrome that allows the patient to retain light touch?

<p>Dorsal columns (A)</p> Signup and view all the answers

Which of the listed conditions can cause Anterior Cord Syndrome by compressing the anterior portion of the spinal cord?

<p>Herniated disc (C)</p> Signup and view all the answers

What is/are the key clinical features that differentiate Posterior Cord Syndrome from Anterior Cord Syndrome?

<p>Preservation of motor function (A)</p> Signup and view all the answers

In a patient diagnosed with Anterior Cord Syndrome, which rehabilitative strategy would be MOST important to implement early in their care plan?

<p>Motor retraining exercises (B)</p> Signup and view all the answers

A patient presents with loss of fine touch and proprioception on the right side of the body below the level of the lesion. Where is the most likely location of the lesion?

<p>Right fasciculus cuneatus (D)</p> Signup and view all the answers

Which of the following impairments would most likely result from a lesion of the right lateral corticospinal tract at the level of the thoracic spine?

<p>Weakness or paralysis on the right side of the body below the lesion (A)</p> Signup and view all the answers

A patient has loss of pain and temperature sensation on the left side of the body, starting a few segments below the lesion. Which spinal tract is most likely affected?

<p>Right lateral spinothalamic tract (D)</p> Signup and view all the answers

What is the MOST likely presentation of Central Cord Syndrome?

<p>Bilateral motor weakness, more pronounced in the upper extremities (C)</p> Signup and view all the answers

A patient presents with ipsilateral motor paralysis, ipsilateral loss of fine touch and proprioception, and contralateral loss of pain and temperature sensation. These symptoms are indicative of what condition?

<p>Brown-Séquard Syndrome (B)</p> Signup and view all the answers

A patient has complete bilateral loss of motor function, pain, and temperature sensation below the level of the lesion, but retains fine touch and proprioception. Which syndrome is the MOST likely cause?

<p>Anterior Cord Syndrome (D)</p> Signup and view all the answers

Which of the following deficits would be MOST characteristic of Posterior Cord Syndrome?

<p>Loss of fine touch, proprioception, and vibration sense (B)</p> Signup and view all the answers

A patient exhibits bilateral loss of motor function and pain/temperature sensation below the level of the spinal cord lesion, while preserving proprioception and fine touch. Which vascular disruption is MOST likely the cause?

<p>Anterior spinal artery (A)</p> Signup and view all the answers

Flashcards

Right Dorsal Column Lesion

A lesion affecting the right dorsal column of the spinal cord, leading to loss of light touch, vibration, and proprioception.

Effects of Right Dorsal Column Lesion

Ipsilateral loss of light touch, vibration, and proprioception below the level of the lesion.

Common Causes of Right Dorsal Column Lesion

Includes trauma, multiple sclerosis, vitamin B12 deficiency, and tabes dorsalis.

Clinical Presentation of Right Dorsal Column Lesion

Poor balance (Romberg’s sign), astereognosis, no loss of pain or motor function.

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Right Fasciculus Cuneatus Lesion

A lesion in the right fasciculus cuneatus disrupting sensory transmission from the upper limb and trunk.

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Effects of Right Fasciculus Cuneatus Lesion

Ipsilateral loss of light touch, vibration, and proprioception in the upper limb and trunk above T6.

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Common Causes of Right Fasciculus Cuneatus Lesion

Caused by multiple sclerosis, spinal cord trauma, vitamin B12 deficiency, and tabes dorsalis.

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Right Lateral Corticospinal Tract Lesion

A lesion causing motor weakness or paralysis on the right side below the lesion due to disrupted motor signals.

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Central Cord Syndrome (CCS)

An incomplete spinal cord injury affecting the cervical region, impairing upper limbs more than lower limbs.

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Corticospinal Tract

A pathway in the spinal cord where fibers controlling arms are located medially compared to those for legs.

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Cape-like Distribution

A type of sensory loss characterized by pain and temperature changes over the shoulders and upper arms.

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Urinary Dysfunction in CCS

Potential issue in Central Cord Syndrome involving difficulty with bladder control.

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Hemicord Lesion

Damage to one side of the spinal cord, leading to distinct motor and sensory impairments called Brown-Séquard Syndrome.

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Ipsilateral Impairments

Sensory and motor issues occurring on the same side as the hemicord lesion.

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Dorsal Column-Medial Lemniscus (DCML)

Sensory pathway responsible for light touch, vibration, and proprioception, affected in hemicord lesions.

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Symptoms of Brown-Séquard Syndrome

Includes loss of proprioception on the same side of the lesion and pain/temperature sensation loss on the opposite side.

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Lateral Spinothalamic Tract

Carries pain and temperature sensations; lesions cause loss below injury level.

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Bilateral Loss

Complete loss of pain and temperature sensation on both sides below the lesion area.

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Common Causes of Lesion

Trauma, tumors, MS, or transverse myelitis can lead to lesions in the tract.

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Posterior Cord Syndrome

Condition with damaged dorsal columns, preserving muscle strength but losing fine touch and proprioception.

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Dorsal Columns

Responsible for fine touch, vibration and proprioception; damage leads to loss of these sensations.

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Sensory Ataxia

Inability to coordinate movements due to loss of position sense; can appear clumsy.

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Intact Pain & Temperature

Pain and temperature sensations remain unaffected in posterior cord syndrome.

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Romberg’s Sign

Indicates sensory ataxia; patient sways when standing with eyes closed.

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Monoplegia

Muscle weakness or paralysis affecting one limb, with upper motor neuron signs.

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Upper Motor Neuron (UMN) Signs

Indications of dysfunction in the upper motor neuron pathways, including spasticity, hyperreflexia, and positive Babinski sign.

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Spasticity

Increased muscle tone or stiffness often resulting from UMN damage.

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Contralateral Impairments

Sensory or motor deficits that occur on the side opposite to the lesion.

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Transverse Cord Lesion

Complete injury affecting the entire width of the spinal cord at a specific level, leading to bilateral impairment below the lesion.

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Dorsal Column Lesion

A lesion affecting the dorsal columns that carry light touch, vibration, and proprioception information, resulting in loss of these sensations.

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Babinski Sign

Reflex response where toes extend upward instead of curling when the sole is stroked, indicating UMN dysfunction.

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Anterior Cord Syndrome

Damage to the anterior portion of the spinal cord affecting motor function and pain/temp sensation.

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Key Impairments of Anterior Cord Syndrome

Loss of voluntary movement, pain and temperature sensation while light touch and vibration are preserved.

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Loss of Voluntary Movement

Bilateral paralysis or weakness below the lesion due to damage in the corticospinal tract.

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Preserved Sensations in Anterior Cord Syndrome

Light touch, vibration, and position sense remain intact due to spared dorsal columns.

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Common Causes of Anterior Cord Syndrome

Includes anterior spinal artery occlusion, trauma, multiple sclerosis, and tumors.

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Clinical Presentation

Includes paralysis, loss of pain/temp sensation, and preserved pressure/vibration senses.

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Upper Motor Neuron Signs

Signs like spasticity, hyperreflexia, and Babinski sign develop over time due to UMN damage.

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Loss of Pain and Temperature Sensation

Bilateral loss occurs below the lesion, increasing risk for unnoticed injuries.

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Neurophysiology

The branch of physiology that studies the nervous system's functions and processes.

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Right Lateral Spinothalamic Tract Lesion

Damage to the lateral spinothalamic tract on the right leading to loss of pain and temperature sensation.

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Brown-Séquard Syndrome

Impairment from hemicord lesion, causing a pattern of motor and sensory deficits.

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Study Notes

Neurophysiology Functional Anatomy

  • The document is an index of learning objectives for a neurophysiology course, focusing on functional anatomy.
  • It lists impairments caused by various spinal cord lesions, including the right dorsal column, fasciculus cuneatus, lateral corticospinal, lateral spinothalamic, central cord, hemicord (Brown-Séquard), transverse cord, posterior cord, and anterior cord syndromes.
  • It details the key impairments and common causes for each type of lesion.
  • It also indicates the location of the affected areas in the spinal cord.
  • The study notes include the clinical presentation associated with the impairments.

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Description

Test your knowledge of spinal cord syndromes, including Central Cord Syndrome (CCS) and Brown-Séquard Syndrome. Questions cover causes, symptoms, and expected sensory deficits associated with hemicord lesions.

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