Neurological Disorders Flashcards
What are the 5 functions of the Cerebral Cortex ?
1. Movement
2. Thought and Personality
3. Language
4. Vision
5. Hearing
Neurologic Damage May affect the following :
1. Level of —————————-
2. Motor —————–
3. ————– Function
4. V———————–
5. L————–
1. Level of Consciousness
2. Motor Function
3. Sensory Function
4. Vision
5. Language
It is a state of unconsciousness and it last more than 6 hours,
It is known as ——————
COMA
Described as “comatose” state
Fill in the the blank
- When Person cannot be ———————-,
- Does not respond to normally painful ————–, light or sound
- ——————— from which a person cannot be aroused
- Eyes remain————-
- ———–normal sleep-wake cycle
- Does not initiate any ————— actions
- Awakened (When Person cannot be)
- Stimuli (Does not respond to normally painful ————–, light or sound)
- Unresponsiveness (——————— from which a person cannot be aroused)
- Closed (Eyes remain————-)
- Lack (———–normal sleep-wake cycle)
- Voluntary ( Does not initiate any ————— actions)
According to the GCS (Glasgow Coma Scale),
a person with —————–is considered
to be in the mildest form of Coma
Confusion
Coma may result from a variety of conditions:
1. drug/alcohol intoxication
2. N————————
3. D————————
4. H———————–
5. Head ———-, etc.
2. neurological
3. deficits
4. hypoglycemia
5. head trauma, etc.
—————————– was developed to quickly assess a patient’s neurological status
Glascow Coma Scale
Glascow Coma Scale determines the best
1. ——————-response,
2.——————-response,
3.———————-response
1. Eye response,
2. Verbal response,
3. Motor response
Generally, brain injury is classified under the Glasgow Coma Scale as:
Severe = ——————
—————— = —————
—————— = ————–
Severe = GCS ≤ 8
Moderate = GCS 9 – 12
Minor/Mild = GCS ≥ 13.
There are 4 clues to the cause of a coma
1. ———————– patterns
2 .Level of —————–
3. ————— responses
3. ——————— light response and eye movement
1. Respiration patterns
2 .Level of arousal
3. Motor responses
3. Pupillary light response and eye movement
What are the 3 coma respiration responses ?
1. Forebrain
2. Midbrian
3.Medulla
The Coma Respiration Responsses occur in the follwing areas of the brain as one of which:
————————- Diffuse forebrain impairment without brain stem injury induces a
pattern of —————————- and————–with progression to ————————————
Forebrain
Yawning
Sighing
Cheyne-Stokes Breathing
The Coma Respiration Responsses occur in the follwing areas of the brain as one of which:
—————— is when progression of coma continues to ———————- respiration changes to—————————————————— leads to Frequency of respirations may exceed 40 breathes per minute, because of uninhibited stimulation of ——————————————————————-
Midbrain
Midbrain
Neurogenic hyperventilation
Inspiratory and expiratory centers
The Coma Respiration Responsses occur in the follwing areas of the brain as one of which:
With medullary involvement respirations are————— that leads totally uncoordinated and irregular; It generally indicates a poor ———————-, and usually
progresses to complete——————–
Ataxic ( means: a=without, taxic=coordination)
prognosis
apnea
Under the Coma Arousal & Motor Response
———————————————————results from increased muscle excitability; characterized by **rigidity of the arms with palms and hands turned away from the body and stiffly ————legs with plantar ————of the feet; back is arched backwards leads to damage to——————-
Decerebrate (extensor) Posture
Extended
Flexion
Midbrain
Under COMA Arousal & Motor Response
——————————————characterized by —————of the arms, wrists and fingers with —————————-of the upper extremities, —————– rotation and plantar —————- of the lower extremities that lead to damage to —————————- tract(s)
Decorticate (flexion) Posture
Flexion
Adduction
Internal rotation
Flexion
corticospinal
Under COMA Arousal & Motor Response
Both decorticate and ——————posturing are poor prognostic signs
Decerebrate
————————–elicited by shining a light in one eye
Pupillary reflex
Under Coma Pupillary Reflexes
In ———-injury, pupils may initially respond briskly to ——————, but they become unreactive and dilated as brain function
Brain
Light
Deteriorates
Under Coma Pupillary Reflexes
A bilateral loss of light response is indicative of ———————-of brain——————
Lesions
Brain Stem
Under the Coma Pupillary Reflexes
A unilateral loss of ———————- response may be due to a ———— of
the optic or ————– pathways
Pupillary light
Lesion
Oculomotor
Under Come Eye movement
In persons with diffuse ————- injury, the eyes often
move aimlessly or do not move spontaneously
Brain
Eyes
Under Come Eye movement
The —————————–can be used to determine if the brainstem centers for eye movement are intact.
Doll’s head response
—————————————
consists of the medulla oblongata, pons, and midbrain.
Brain Stem
————————— serves a critical role in regulating
certain involuntary actions of the body,
including heartbeat and breathing.
Brainstem
———————–reflex (normal) if eyelids are held
open, eyes will move in direction opposite of passive
neck movement and then rapidly return to mid-position
Oculocephalic
———————— response (abnormal) = loss of Oculocephalic reflex
The ——————response demonstrates the always
present ————————static reflexes
Hint “Barbie Doll”
Doll’s head
Doll’s head
Vestibular
note :
The vestibular system includes the parts of the inner ear and brain that help control balance and eye movements. If the system is damaged by disease, aging, or injury, vestibular disorders can result, and are often associated with one or more of these symptoms, among others: – Dizziness. – Imbalance. – Vertigo.
The vestibular system includes the parts of the inner ear and brain that help control balance and eye movements. If the system is damaged by disease, aging, or injury, vestibular disorders can result, and are often associated with one or more of these symptoms, among others: – Dizziness. – Imbalance. – Vertigo.
True / False
True
Severe damage to ————————–or to the ———————– rostral to the pons
leads the eyes stay in midposition (fixed) or turn to the same side.
(Ie. Doll’s head response)
hint: Rostral refers to the anterior (front) aspect of the head
Forebrain
Brainstem
Most persons in prolonged coma who survive evolve to
what is called: ———————————————————-
Persistant Vegetative State
This is characterized by loss of all ————————functions and awareness of surroundings
(even though they seem like they are aware)
Under —————————————-
Cognitive
Persistant Vegetative State
Reflex and vegetative functions remain, including
————- and ————-cycles, Persons must be fed and require full nursing care.
This occurs under ————————————————-
Wake
Sleep
Persistent Vegetative State
Under the Vegetative Persistant State
The cerebrum, can no longer function,
but the———————-and ————————–, which control sleep
cycles, body temperature, breathing, blood pressure, and heart rate, *can function
Thalamus and Brainstem
If a —————————— lasts for more than a few months,
people are unlikely to recover consciousness
Vegetative State
This condition is the most severe form of
unconsciousness is called ———————————-
BRAIN DEATH
—————————–is the absence of clinical brain function
when the proximate cause is known and irreversible
Brain Death
The brain has permanently lost the ability to perform all
vital functions, including breathing. Surviving only via a ventilator (life support)
It is called ——————————-
BRAIN DEATH
A ——————–dead person is considered legally dead
Brain
The person does not grimace, move, or otherwise react in response to any type of stimulation.
The eyes do not react to light.
All reflexes are absent.
The person makes no attempt to breathe
It is called ————————————–
BRAIN DEATH
The ——————————————–originate in the cerebral cortex and travel down to the
brain stem or spinal cord,
Upper Motor Neuron
—————————————- begin in the spinal cord and go on to innervate muscles and glands throughout the body.
Lower Motor Neurons
Damage to posterior zone of frontal lobe———————————OR damage to
—————————————–Tract in brain (above medulla)
(Primary Motor Cortex)
Corticospinal
The ——————————- is a white matter motor pathway starting at the cerebral cortex that terminates on lower motor neurons and interneurons in the spinal cord, controlling movements of the limbs and trunk.
Corticospinal Tract
—————————–(opposite side)
weakness(————————)
and/or paralysis (below ————————-)
CONTRALATERAL
Paresis
Medulla
Increased muscle tone and reflexes that leads to
Hyperreflexia
————————— leads to Spastic Paralysis & Immobility
note : Spastic means muscle spasm
Contractures
One of the diagnostic test for motor fiunction for the upper motor neuron lesion is ——————————————–
Babinksi’s sign
Damage to anterior/ventral (motor) horns of spinal cord
(ie. Corticospinal tracts below medulla),
it is affecting the ————————————————-
Lower motor neuron lesion
————————(same side) weakness and/or
paralysis at and below level of damage
IPSILATERAL
Under lower motor neuron lesion
Loss of muscle tone is called ———————-
Flaccid
Under lower motor neuron lesion
Absence of reflexes leads to ———flexia/————-reflexia
& —————– paralysis
Areflexia/Hyporeflexia
Flaccid
note
<strong><u>Areflexia</u> is a condition in which your muscles don’t respond to stimuli.</strong>
<strong><u>Hyporeflexia </u>refers to a condition in which your muscles are less responsive to stimuli</strong>
Under lower motor neuron lesion
one of the Diagnostic testing is through—————————
Normal plantar reflex