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WorksheetsNeuro Unit 4 Exam
Total questions: 51
Worksheet time: 38mins
A peripheral nerve injury would impair signals on which part of the primary neuron?
Peripheral receptor site in the skin
Axon from receptor to cell body
Cell body in the dorsal root ganglion
Axon from cell body to the CNS
A patient lifts a cold can of soda to drink from. What peripheral receptors are activated? Select all that apply
Mechanoreceptors
Thermoreceptors
Nociceptors
Proprioceptors
Chemoreceptors
The distance between two points of contact does not change as you move from the elbow to the fingertip. What does this tell you about your patient's sensation?
All sensation components are functioning normally
Sensation is impaired in the distal upper limb
Proprioception is impaired in the upper limb joints
Sensation is impaired in the proximal upper limb
A lesion is present in the mid-superior ventral medulla. Which of the following deficits are likely?
Ipsilateral - Pain
Contralateral - Temperature
Ipsilateral - Proprioception
Contralateral - Discriminative touch
Ipsilateral - Motor
Loss of pain and temperature on the right lower extremity indicate a lesion to what structure?
Anterior Medulla
Left anterior spinal cord
Right thalamus
Posterior spinal cord columns
Right pre-central gyrus
A patient suffers a middle cerebral artery stroke. Which of the following describe a potential deficit related to the spinothalamic (STHL) tract?
Contralateral loss of proprioception from lower limb
Ipsilateral loss of pain sensation in upper limb
Contralateral loss of temperature sensation in upper limb
Ipsilateral loss of upper limb tactile sensation
Contralateral loss of upper and lower limb sensation
Which of the following describes the structure of the sensory tract pathways?
Efferent 2 neuron pathway
Afferent 3 neuron pathway
Efferent pathway with upper and lower neurons
Afferent pathway with upper and lower neurons
Which of the following receptors detect stimuli that exceeds normal ranges for temperature, pressure, stretch, or pH?
Chemoreceptors
Proprioceptors
Thermoreceptors
Nociceptors
Mechanoreceptors
Awareness of two points of contact on the skin refers to what type of sensation?
Vibration
Crude touch
Proprioception
2-point discriminatory fine touch
The ability to differentiate objects by weight, size, texture, shape without the input of vision is referred to as which of the following?
Crude touch
Proprioception
Graphethesia
Stereognosis
Injury to a single spinal cord segment would present in which of the following distributions?
Limb distribution
Dermatome distribution
Peripheral nerve distribution
Plexus distribution
Where are the sensory tracts located in the spinal cord?
Lateral and medial white matter
Dorsal and ventral horns
Dorsal and ventral white matter
Ventral basis and lateral tegmentum
What tract includes the medial lemniscus?
Dorsal column tract
Divergent tract
Spinothalamic tract
Spinocerebellar tract
A lateral brainstem lesion in the medulla would impact which of the following tracts?
Corticobulbar
Spinothalamic
Lateral corticospinal
Dorsal columns
A patient presents with deficits in pain and temperature in the upper right extremity. Where is the potential location of the lesion?
Left dorsal horn of C7
Left thalamus
Left ventral spinal cord at L5
Right medial somatosensory cortex
Which of the following describes the sensory deficits observed with a stroke in the left internal carotid artery?
Contralateral loss of pain and temperature in the upper limb
Contralateral loss of all sensation in the upper and lower limb
Ipsilateral loss of motor and sensory functions in the upper and lower limb
Ipsilateral loss of proprioception in the lower limb
Which of the following layers of the eye contain the cornea?
Anterior Segment
Retina
Sclera
Choroid
Misalignment of the eyes due to impairment of the extra-ocular muscles results in which of the following deficits?
Unilateral blindness
Double vision
Detached retina
Glaucoma
Which of the following terms describes medial deviation of one eye at rest when the other is aligned straight ahead?
Anopsia
Esotropia
Diplopia
Exotropia
Changing the shape of which of the following structures allows for near and distant vision?
Optic nerve
Lens
Cornea
Retina
Which of the following can be corrected with external lenses?
Cataracts
Mydriasis
Glaucoma
Myopia
Miosis
Which structure in the eye is formed by the sphincter and dilator papillae muscles?
Ciliary body
Retina
Suspensory ligaments
Cornea
Iris
Which of the following structures transmits light stimuli to neural signals?
Iris
Retina
Cornea
Optic nerve
Which of the following is a potential cause of amaurosis fugax?
Stroke to the occipital cortex
Vertebrobasilar stroke
Lesion to optic chiasm
Occlusion of the internal carotid artery
Which part of the retina composes our peripheral vision?
Temporal retinas
Macula
Nasal retinas
Blind spot
Which of the following accurately describes the nerve fibers from the temporal retinas?
Fibers transmit from the ipsilateral visual field
Fibers cross in the optic chiasm
Fibers terminate in the thalamus
Fibers are ipsilateral from retina to occipital lobe
Where do neurons in the optic tract synapse?
Optic chiasm
Retina
Thalamus
Occipital lobe
The right visual field projects to which of the following?
Left primary visual cortex
Right thalamus
Left nasal retina
Right temporal retina
Right optic tract
A lesion to the optic chiasm would result in which of the following anapsias?
Homonymous hemianopsia
Ipsialteral blindness
Bitemporal hemianopsia
Homonymous hemianopsia in the right visual field occurs with lesions to which of the following locations?
Right occipital lobe
Right optic nerve
Optic chiasm
Left thalamus
Left retina
A lesion to the right optic nerve results in which type of deficit?
Loss of stimuli from the left nasal and temporal retinas
Loss of peripheral vision
Ipsilateral blindness in the right eye
Loss of vision from the left visual field
A lateral brainstem lesion to the medulla would spare which of the following sensations?
Pain
Tactile sensation
Temperature
Crude touch
A patient presents with deficits in pain and temperature in the upper left extremity. Where is the potential location of the lesion?
Right ventral spinal cord at L5
Right thalamus
Left medial somatosensory cortex
Right dorsal horn of C7
A patient suffers a stroke to the right anterior cerebral artery. Which of the following best describes the potential complete deficits?
Left lower extremity motor loss
Right upper and lower motor and sensory loss
Left lower extremity motor and sensory loss
Right lower extremity loss of pain and temperature
Left upper extremity motor and sensory loss
A patient has complete loss of their peripheral vision. Where is the location of the lesion?
Optic tract
Optic chiasm
Temporal retinas
Primary visual cortex
Which of the following receptors primarily contribute signals indicating body position?
Mechanoreceptors
Thermoreceptors
Nociceptors
Proprioceptors
Where is the cell body located of the primary (1st order) sensory neuron?
Dorsal horn
Thalamus
Dorsal root ganglion
Ventral white matter
Medial lemniscus
Poorly localized pain travels to the CNS using which of the following pathways?
Dorsal Column/Medial Lemniscus (DCML)
Divergent
Spinocerebellar
Spinothalamic (STHL)
Lateral corticospinal (LSCT)
A lesion to which of the following locations would impair sensation from proprioceptors in the left lower limb?
Right dorsal horn L5
Right fascicles cuneatus C5
Left thalamus
Left fascicles gracilis L3
Right inferior dorsal medulla
A patient presents with loss of proprioception, pain, temperature in the left upper limb?
Contralateral ventral white matter spinal cord
Ipsilateral dorsal horn C8
Contralateral dorsal horn L5
Ipsilateral dorsal white matter spinal cord
Ipsilateral thalamus
What structure within the eye receives light and transitions into neural signals for the optic nerve?
Cornea
Macula
Retina
Lens
Pupil
In which of the following conditions does excess pressure on the retina develop from poor drainage of aqueous fluid within the anterior chamber?
Glaucoma
Homonymous heminopsia
Amaurosis fugax
Esotropia
Macular degeneration
Injury to the optic nerve would result in which of the following conditions?
Homonymous hemianopsia
Ipsilateral blindness
Bitemporal hemianopsia
Exotropia
Macular degeneration
Which of the following occurs with injury to the oculomotor nerve (CN III)?
Mydriasis
Exotropia
Loss of accommodation
Diplopia
All of the above
A patient fails to receive visual stimuli from the left visual field. Where is their potential injury?
Midbrain
Optic chiasm
Right optic nerve
Right primary visual cortex
Left optic nerve
Injury to the nasal retinas or crossing fibers of the visual tract result in what type of visual deficit?
Homonymous hemianopsia
Ipsilateral blindness
COmplete anopsia
Bitemporal hemianopsia
Esotropia
Which of the following describes the role of the medial longitudinal fascicules?
Connect vestibular signals with the spinal cord
Connects vestibular signals with a pathway to direct the eyes to work together
Connects vestibular signals with a pathway to respond reflexively to sound
Connects vestibular signals with the cerebral cortex
Which of the following structures directly stimulates the hair cells in the cochlea with vibrations?
Tectorial membrane
Semicircular canals
Perilymph
Otoliths
Tympanic membrane
Which of the following structures senses rotational movement of the head?
Cochlea
Organ of Corti
Semicircular canals
Otoliths
Stapes
Which of the following would result in sensorineural hearing loss?
Excessive ear wax
Middle ear infection
Ruptured tympanic membrane
Chronic noise damage to the Organ of Corti
Which of the following describes how sound is perceived within the primary auditory cortex?
The auditory cortex receives 25% of signals from the contralateral ear
The auditory cortex receives 100% of signals from the contralateral ear
The auditory cortex receives 75% of signals from the contralateral ear
The auditory cortex receives 100% of signals from the ipsilateral ear
