Podcast
Questions and Answers
Which of the following is NOT a function of the Lateral Spinothalamic tract?
Which of the following is NOT a function of the Lateral Spinothalamic tract?
The Artery of Adamkiewicz is a major blood supply to which part of the spinal cord?
The Artery of Adamkiewicz is a major blood supply to which part of the spinal cord?
Which of the following tracts is responsible for carrying information about proprioception, kinesthesia, and vibration?
Which of the following tracts is responsible for carrying information about proprioception, kinesthesia, and vibration?
Which type of neuron is responsible for connecting the motor neurons to sensory neurons in the spinal cord?
Which type of neuron is responsible for connecting the motor neurons to sensory neurons in the spinal cord?
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Which level of the spinal cord typically represents the watershed zone, meaning it has a decreased blood supply?
Which level of the spinal cord typically represents the watershed zone, meaning it has a decreased blood supply?
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Which of the following is the primary function of the rubrospinal tract?
Which of the following is the primary function of the rubrospinal tract?
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Which of the following tracts is responsible for carrying information about touch and pressure to the brain?
Which of the following tracts is responsible for carrying information about touch and pressure to the brain?
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Which of the following is NOT a characteristic of the descending tracts?
Which of the following is NOT a characteristic of the descending tracts?
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Which of the following is NOT a characteristic of the Cauda Equina?
Which of the following is NOT a characteristic of the Cauda Equina?
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What is the function of the Clarke's Dorsal Nucleus?
What is the function of the Clarke's Dorsal Nucleus?
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Where does the spinal cord end in an adult?
Where does the spinal cord end in an adult?
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Which of the following is a characteristic of the Posterior Spinal Artery?
Which of the following is a characteristic of the Posterior Spinal Artery?
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In the context of the Bell-Magendie Law, what does 'Dorsal' represent?
In the context of the Bell-Magendie Law, what does 'Dorsal' represent?
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Which of the following sites is most commonly affected by Heterotopic Ossification (HO) following a stroke or traumatic brain injury (TBI)?
Which of the following sites is most commonly affected by Heterotopic Ossification (HO) following a stroke or traumatic brain injury (TBI)?
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What is the most common complication associated with Deep Vein Thrombosis (DVT) in individuals with respiratory impairments?
What is the most common complication associated with Deep Vein Thrombosis (DVT) in individuals with respiratory impairments?
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Which of the following structures is characterized as having a 'horse tail' appearance?
Which of the following structures is characterized as having a 'horse tail' appearance?
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What is the primary function of Rexed Lamina VIII and IX?
What is the primary function of Rexed Lamina VIII and IX?
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Which of the following is not a part of Virchow's Triad, a set of factors that contribute to the development of Deep Vein Thrombosis (DVT)?
Which of the following is not a part of Virchow's Triad, a set of factors that contribute to the development of Deep Vein Thrombosis (DVT)?
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Which of the following is NOT considered a VERTICAL artery of the spinal cord?
Which of the following is NOT considered a VERTICAL artery of the spinal cord?
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What is the most common cause of death in individuals with respiratory impairments?
What is the most common cause of death in individuals with respiratory impairments?
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Which of the following activities is not considered a pressure relief activity to assist in the prevention of pressure ulcers?
Which of the following activities is not considered a pressure relief activity to assist in the prevention of pressure ulcers?
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Which of the following is a common site for pressure ulcers in individuals who are lying on their side?
Which of the following is a common site for pressure ulcers in individuals who are lying on their side?
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What is the primary management strategy for a patient experiencing respiratory complications, such as pneumonia or atelectasis?
What is the primary management strategy for a patient experiencing respiratory complications, such as pneumonia or atelectasis?
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Which of the following is not a common management technique for individuals with respiratory impairments?
Which of the following is not a common management technique for individuals with respiratory impairments?
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What does the acronym ASIA stand for?
What does the acronym ASIA stand for?
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A patient with a complete spinal cord injury has a score of 0/5 for the anal contraction portion of the ASIA scale. What does this indicate?
A patient with a complete spinal cord injury has a score of 0/5 for the anal contraction portion of the ASIA scale. What does this indicate?
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A patient has a sensory level of T10 and a motor level of T12. What is their Neurologic Level of Injury (NLI)?
A patient has a sensory level of T10 and a motor level of T12. What is their Neurologic Level of Injury (NLI)?
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What is the difference between a complete and incomplete spinal cord injury?
What is the difference between a complete and incomplete spinal cord injury?
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How is the motor level determined in the ASIA scale?
How is the motor level determined in the ASIA scale?
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Which of the following is a TRUE statement about Spinal Shock?
Which of the following is a TRUE statement about Spinal Shock?
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Which of the following is a common complication associated with Spasticity after a Spinal Cord Injury?
Which of the following is a common complication associated with Spasticity after a Spinal Cord Injury?
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Which of these neurotransmitters is NOT used in pharmacologic management of spasticity?
Which of these neurotransmitters is NOT used in pharmacologic management of spasticity?
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Which of the following is a CORRECT statement about Autonomic Dysreflexia?
Which of the following is a CORRECT statement about Autonomic Dysreflexia?
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Which of the following is a symptom of Autonomic Dysreflexia?
Which of the following is a symptom of Autonomic Dysreflexia?
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In the management of Orthostatic Hypotension, what does the acronym 'TAE CO' stand for?
In the management of Orthostatic Hypotension, what does the acronym 'TAE CO' stand for?
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Which of the following is a TRUE statement about the Bulbocavernosus Reflex?
Which of the following is a TRUE statement about the Bulbocavernosus Reflex?
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Which surgical procedure involves cutting the nerve root?
Which surgical procedure involves cutting the nerve root?
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A patient with a C7 level spinal cord injury can perform which of the following activities independently without assistive devices?
A patient with a C7 level spinal cord injury can perform which of the following activities independently without assistive devices?
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Which of the following activities can be performed by a patient with a C6 level spinal cord injury with assistive devices?
Which of the following activities can be performed by a patient with a C6 level spinal cord injury with assistive devices?
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A patient with a T12-L2 spinal cord injury can perform which of the following?
A patient with a T12-L2 spinal cord injury can perform which of the following?
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What is the primary function of the Balance FA orthosis (BFO) as outlined in the content?
What is the primary function of the Balance FA orthosis (BFO) as outlined in the content?
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What kind of wheelchair is recommended for a individual with a C5 level spinal cord injury?
What kind of wheelchair is recommended for a individual with a C5 level spinal cord injury?
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Which of the following activities would NOT be considered a 'Self care' activity as mentioned in the content?
Which of the following activities would NOT be considered a 'Self care' activity as mentioned in the content?
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What is the main reason that wrist and finger extension should be avoided during tenodesis exercises for a patient with a C6 spinal cord injury?
What is the main reason that wrist and finger extension should be avoided during tenodesis exercises for a patient with a C6 spinal cord injury?
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Why is it significant that a patient with a C7 level spinal cord injury can perform 'Self ROM (7)'?
Why is it significant that a patient with a C7 level spinal cord injury can perform 'Self ROM (7)'?
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Flashcards
Spinal Cord
Spinal Cord
Continuation of medulla oblongata; transmits signals between brain and body.
Conus Medullaris
Conus Medullaris
Tapered end of the spinal cord; related to upper motor neuron lesions.
Cauda Equina
Cauda Equina
Collection of lumbosacral nerve roots; corresponds to lower motor neurons.
Bell Magendie Law
Bell Magendie Law
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Rexed Laminae
Rexed Laminae
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Anterior Spinal Artery (ASA)
Anterior Spinal Artery (ASA)
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Posterior Spinal Artery (PSA)
Posterior Spinal Artery (PSA)
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Segmental Arteries
Segmental Arteries
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Spinal Shock
Spinal Shock
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Bulbocavernosus Reflex
Bulbocavernosus Reflex
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Spasticity
Spasticity
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Autonomic Dysreflexia
Autonomic Dysreflexia
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Signs of Autonomic Dysreflexia
Signs of Autonomic Dysreflexia
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Management of Autonomic Dysreflexia
Management of Autonomic Dysreflexia
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Orthostatic Hypotension
Orthostatic Hypotension
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Management Strategies for OH
Management Strategies for OH
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Radicular Artery
Radicular Artery
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Watershed Zone
Watershed Zone
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Sensory Neuron
Sensory Neuron
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Motor Neuron
Motor Neuron
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Interneuron
Interneuron
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Autonomic Neurons
Autonomic Neurons
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Lateral Spinothalamic Tract
Lateral Spinothalamic Tract
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Lateral Corticospinal Tract
Lateral Corticospinal Tract
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ASIA Scale
ASIA Scale
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Complete SCI
Complete SCI
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Incomplete SCI
Incomplete SCI
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Neurologic Level of Injury (NLI)
Neurologic Level of Injury (NLI)
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Motor Level (ML)
Motor Level (ML)
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Respiratory Impairments
Respiratory Impairments
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Heterotopic Ossification (HO)
Heterotopic Ossification (HO)
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C5 Functionality
C5 Functionality
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Pressure Ulcers
Pressure Ulcers
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C6 Self-Care
C6 Self-Care
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Deep Vein Thrombosis (DVT)
Deep Vein Thrombosis (DVT)
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Cardiopulmonary Complications
Cardiopulmonary Complications
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C7 Independence
C7 Independence
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C8 Standard Wheelchair
C8 Standard Wheelchair
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Management of Pressure Ulcers
Management of Pressure Ulcers
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T4-T6 Standing
T4-T6 Standing
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Management of DVT
Management of DVT
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Virchow’s Triad
Virchow’s Triad
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Swing to Gait (T6-T9)
Swing to Gait (T6-T9)
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Household Ambulation (T9-T12)
Household Ambulation (T9-T12)
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Community Ambulation (L3)
Community Ambulation (L3)
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Study Notes
Spinal Cord Injury - Introduction
- Spinal cord is a continuation of the medulla oblongata
- Carries signals from the brain to the body
- Starts at the medulla oblongata (MO)
- Ends at L1 (below) in adults, and L3 (above) in children
- Lumbar puncture is performed between L3-L4 due to the widest space
- Conus medullaris is the tapered end of the spinal cord
- Cauda equina is a collection of lower lumbar and sacral nerve roots
- Filum terminale is a pia mater prolongation attached to the 1st coccygeal vertebra.
Bell-Magendie Law
- Ventral: Efferent (motor)
- Dorsal: Afferent (sensory)
Peripheral
- White matter contains myelinated axons.
- Gray matter contains unmyelinated axons.
Rexed Laminae
- I-IV: Pain, touch, temperature
- III & IV: Proprioception, tactile discrimination, vibration
- V: Noxious stimulus from viscera
- VI: Noxious stimulus from skin/mechanoreceptor
- VII: Clarke's Dorsal Nucleus (Balance)
- VIII & IX: Anterior Horn Cell (Motor)
- X: Central gray commissure
Blood Supply
- Anterior Spinal Artery (ASA): Composed of 1 artery, supplying anterior aspect of spinal cord (most of the SC's blood supply)
- Posterior Spinal Artery (PSA): Composed of 2 arteries, supplying posterior aspects of the spinal cord
- Segmental Arteries (AKA Radicular Arteries): Enhance blood supply
- Great anterior radicular artery (AKA artery of Adamkiewicz): Found at T6-L3 or T12-L2; Left and anterior; lower half of spinal cord supply
- Watershed Zone: Region lacking segmental arteries; Between roots T4-T6; Reduces blood supply
Neurons
- Sensory (ascending):
- 1st order: Dorsal root ganglion
- 2nd order: Interneuron (posterior horn to thalamus)
- 3rd order: Thalamus to sensory cortex
- Motor (descending):
- 1st order: Upper motor neuron (UMN) (cortex to anterior horn)
- 2nd order: Interneuron
- 3rd order: Lower motor neuron (LMN) (anterior horn to spinal nerves)
- Interneuron: Connects motor and sensory neurons.
Tracts
- Ascending:
- Lateral spinothalamic: pain, temperature
- Anterior spinothalamic: touch, pressure
- Dorsal column: proprioception, kinesthesia, vibration (PKV)
- Anterior and posterior spinocerebellar: balance
- Spinotectal: visual reflex
- Spino-reticular: wakefulness, arousal
- Descending:
- Lateral corticospinal: skilled movement
- Anterior corticospinal: skilled movement
- Tectospinal: visual reflex (efferent)
- Reticulospinal:
Autonomic Neurons
- Carry signals to:
- Cardiac muscle
- Smooth muscle
- Visceral organs ("involuntary muscles")
- Pre-ganglionic neurons (in brain/spinal cord): signals from brain or spinal cord to ganglion
- Post-ganglionic neurons (in ganglion): signals from the ganglion to glands or organs
Spinal Cord Injury - Epidemiology, Etiology
- Epidemiology: Age (16-30, average 26), more common in males, high in summer months
- Etiology:
- Traumatic: 70%, most common cause is motor vehicle accidents (MVAs), also falls, assaults, and sports
- Non-traumatic: tumors, toxins, infections, and congenital abnormalities
Clinical Syndromes
- Incomplete SCI:
- Anterior cord syndrome: worst prognosis
- Posterior cord syndrome
Other details include:
- Types of spinal cord injuries
- Complications such as Heterotopic ossification (HO)
- Fractures and osteoporosis, pressure ulcers, Deep Vein Thrombosis (DVT)
- Cardiopulmonary complications (e.g., pneumonia, heart disease)
- Spinal shock, Spasticity, Spasticity
- ASIA Scale for classification (Sensory and Motor)
Clinical Manifestations
- Includes time frame for spinal shock (1 day-3 days), reflexes, and bulbocavernosus reflex tests, and other relevant information on the impact on spasticity, scoliosis, and hip dislocation.
Assessment
- Includes ASIA scale definitions complete, sensory incomplete, motor incomplete etc
- Includes sacral sparing details.
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Description
This quiz covers the fundamental aspects of the spinal cord, including its anatomy, the functions of the different spinal regions, and the significance of the Bell-Magendie Law. It also explores the structure and functionality of the white and gray matter, along with the Rexed Laminae. Test your knowledge on spinal cord injuries and their implications.