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97 Cards in this Set
- Front
- Back
afferent means:
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sensory
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efferent means:
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messages
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personality, behavior, emotions, and intellectual function
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frontal lobe
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initiates voluntary movement
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precentral gyrus
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primary center for sensation
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parietal lobe
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visual receptor center
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occipital
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auditory reception center
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temporal
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language comprehension, when injured, receptive aphasia results, the person hears sound but it has no meaning
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wernicke's area
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mediates motor speech, when injured, expressive aphasia results; the person cannot talk
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broca's area
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transmit the sensations of pain, temperature, and crude or light touch
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Spinothalamic Tract
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conduct the sensations of position, vibration, and localized touch
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Posterior (dorsal) Columns
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mediate voluntary movement, particularly very skilled, discrete, purposeful movements, such as writing
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corticospinal fibers
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control automatic associated movements of the body
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basal ganglia
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main relay station for the nervous system
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thalamus
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major control center: temperature, heart rate, and blood pressure control, sleep center, anterior and posterior pituitary gland regulator
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hypothalamus
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motor coordination of voluntary movements, equilibrium, and muscle tone
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cerebellum
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"higher" motor system. promotes very skilled and purposeful movements
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corticospinal tract
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"lower" motor system. maintain muscle tone and control body movements
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extrapyramidal tracts
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coordinates movement, maintains equilibrium, and helps maintain posture
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cerebellar system
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upper motor neurons are located where?
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central nervous system
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Lower motor neurons are located where?
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peripheral nervous system
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any movement must be translated into action by?
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lower motor neuron fibers
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examples of lower motor neurons:
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cranial and spinal nerves of the peripheral nervous system
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examples of lower motor neuron diseases
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spinal cord lesions, poliomyelitis, and amyotrophic lateral sclerosis
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examples of upper motor neuron diseases
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cerebrovascular accident, cerebral palsy, and multiple sclerosis
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these cranial nerves extend from the lower diencephalon and the brain stem
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III and XII
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these cranial nerves extend from the cerebrum
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I and II
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this is the only nerve that does not supply the head and neck
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vagus nerve
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the vagus nerve travels to where?
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heart, respiratory muscles, stomach, and gallbladder
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olfactory nerve
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smell
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optic nerve (II)
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vision
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opening of eyelids, pupil constriction, lens shape
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oculomotor (III)
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controls down and inward eye movement
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Trochlear (IV)
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muscles of mastication, sensation of face and scalp, cornea, mucous membranes of mouth and nose
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Trigeminal (V)
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controls lateral movement of eye
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abducens (VI)
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facial muscles,cose eye, labial speech close mouth, taste on anterior two thirds of tongue, saliva and tear secretion
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facial (VII)
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hearing and equilibrium
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acoustic (VIII)
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pharynx (phonation and swallowing) taste gag reflex, parotid gland, carotid refles
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glossopharyngeal (IX)
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pharynx and larynx (talking and swallowing) general sensation from carotid body, carotid sinus, pharynx, viscera, carotid reflex
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Vagus (X)
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movement of trapezius and sternomastoid muscles
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Spinal (XI)
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movement of tongue
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hypoglossal (XII)
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(I)
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olfactory
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(II)
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Optic
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(III)
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oculomotor
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(IV)
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Trochlear
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(V)
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trigeminal
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(VI)
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abducents
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(VII)
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facial
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(VIII)
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acoustic
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(IX)
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glossopharyngeal
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(X)
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vagus
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(XI)
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spinal
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(XII)
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hypoglossal
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Sensory nerves
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olfactory, optic, acoustic
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motor nerves
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trochlear, abducens, spinal, hypoglossal
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mixed nerves
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oculomotor, trigeminal, facial, glossopharyngeal, vagus
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dermatomes C6, C7, C8
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thumb, middle finger, and fifth finger
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dermatome T1
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axilla
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dermatome T4
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nipple
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dermatom T10
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umbillicus
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dermatome L1
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groin
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dermatome L4
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knee
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the somatic fibers innervate which muscles?
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skeletal (voluntary) muscles
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the autonomic fibers innervate which muscles?
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smooth (involuntary) muscles, cardiac muscles and glands
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sudden loss of strength, a temporary loss of consciousness due to lack of cerebral blood flow
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syncope
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rotational spinning caused by neurologic disease in the vestibular apparatus in the ear, or in the vestibular nuclei in the brain stem
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vertigo
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feel as if the room spins
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objective vertigo
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feels as if you are spinning
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subjective vertigo
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occur with epilepsy, a paroxysmal disease characterized by altered or loss of consciousness, involuntary muscle movements and sensory disturbances
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sizures
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subjective sensation that precedes a seizure; it could be auditory, visual, or motor
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aura
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partial or incomplete paralysis
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paresis
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loss of motor function due to a lesion in the neurologic or muscular system or loss of sensory innervation
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paralysis
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the inability to control rang of motion of muscles
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dysmetria
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an abnormal sensation, e.g. burning and tinglins
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paresthesia
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difficulty forming words
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dysarthria
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dysphasia
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difficulty with language comprehension or expression
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get up at night and feel faint
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micturition syncope
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senile tremor is relieved by what?
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alcohol
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decrease or loss of smell
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anosmia
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occurs bilaterally with tobacco smoking, allergy rhinitis, and cocaine use
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anosmia
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loss of smell in the absence of nasal disease
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unilateral loss
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what test do you use to test cranial nerve II
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confrontation test
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myasthenia gravis, dysfunction of cranial nerve III, or Horner's syndrome can cause what with the eye
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ptosis (drooping)
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increasing intracranial pressure can cause sudden ____?
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unilateral, dilated and nonreactive pupil
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disease of the vestibular system, cerebellum, or brain stem cause what in the eyes
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nystagmus
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what are you looking for with the corneal reflex test (piece of cotton to the cornea)
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a blink
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hoarse or brassy voice occurs with what dysfunction
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vocal cord
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nasal twang occurs with what
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weakness of soft palate
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what test is used to test hearing
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whispered voice test, Weber and Rinne tuning fork test
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ataxia that did not appear with regular gait may appear now
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with tandem walking
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inability to tandem walk is sensitive for hwat
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an upper motor neuron lesion such as multiple sclerosis and an acute cerebellar dysfunction such as alcohol intoxication
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what test proves leg muscle weakness
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romberg test
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what is a positive romberg test?
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loss of balance that occurs when closing the eyes
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a positive romberg test occurs with
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ataxia, loss of proprioception, and loss of vestibular function
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slow, clumsy and sloppy response with alternating movements and occurs with cerebellar disease
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dysdiadochokinesia
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an inability to control the range of movement on trying to touch an object with an index finger. occurs with cerebellar disease and alcohol intoxication
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dysmetria
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constant deviation to one side
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past-pointing
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