Neuro study questions ch 5

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The unconscious sense of where one body part is in relation to the other in automatic movement sequences is processed in the

lateral spinothalamic tract.
anterior spinothalamic tract.
spinocerebellar tract.
anterolateral tract.
dorsal column pathway
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Terms in this set (18)
The unconscious sense of where one body part is in relation to the other in automatic movement sequences is processed in the

lateral spinothalamic tract.
anterior spinothalamic tract.
spinocerebellar tract.
anterolateral tract.
dorsal column pathway
spinocerebellar tract.

The spinocerebellar tract likely processes unconscious perception of already-learned motor patterns. The lateral, anterior, anterolateral, and dorsal column pathways process conscious touch. In addition, the dorsal columns process conscious proprioception.
Which of these processes does not directly involve the auditory cortex?

Analysis of frequency
Localization of sound
Determining temporal sequencing
Discrimination of intensity
Both A and D
Both A and D
The organ of Corti analyzes the frequency and intensity of sound. Localizing and determining temporal sequencing requires the auditory cortex. REF: p. 99
Which of the following nuclei is/are not a way station of the auditory pathway?

Nucleus of the lateral leminiscus
Nucleus gracillus
Superior olivary nucleus
Nucleus cuneatus
Inferior colliculus
Nucleus gracillus
Nucleus cuneatus
These are nuclei in the dorsal column pathway for somatic sensation. REF: p. 98
Lesions in the __________________________ may result in visual agnosia.

peristriate cortex
dorsal stream pathway
ventral stream pathway
hippocampus only
ventral stream pathway

The ventral stream pathway in the temporal lobe is responsible for perceiving and recognizing stimuli, regardless of location. A lesion in this area may lead to impairment of object recognition. REF: pp. 107, 108
The inability to determine the location of a tactile stimulation is called

agnosia.
hypoesthesia.
anesthesia.
hypoalgesia.
atopognosis.
atopognosis.
Atopognosis is the inability to localize tactile stimulation. Agnosia is the inability to interpret a sensory stimulus. Hypoesthesia is decreased tactile sensation, hypoalgesia is a diminished sense of pain, and anesthesia is a complete loss of sensation. REF: p. 103
A child who recoils at the touch of a feather may be demonstrating

hypoesthesia.
hyperesthesia.
anesthesia.
atopognosis.
astereognosis.
hyperesthesia.
This child appears to be overly sensitive to light touch, which describes hyperesthesia. REF: p. 103
Sensations of pain and temperature are processed in the

lateral spinothalamic tract.
dorsal column pathway.
spinocerebellar tract.
anterolateral tract.
Both A and D
Both A and D
The lateral spinothalamic tract processes pain, temperature, pressure, and touch. It has also been described as the anterolateral tract. REF: pp. 100, 101
A student reaches into a full backpack and is able to retrieve a pencil without looking. This is an example of

two-point discrimination.
light touch.
vibratory sensation.
proprioception.
form perception.
form perception.
Form perception is the ability to identify an object by touch alone. REF: p. 101
The unimodal cortex includes all of the following areas except

visual cortex.
auditory cortex.
association cortex.
somatosensory cortex.
A and C
association cortex.
Unimodal areas are the first point of cortical processing of sensory information. Association cortices are found adjacent to the unimodal cortices and involve multilevel processing. REF: p. 94
A patient with a lesion in the right lateral spinothalamic tract would not be able to feel pain on the left side of the body.

True
False
True
The perception of pain and temperature is lost on the side contralateral to the lesion. REF: p. 103
Which of the following sensory receptors are responsible for detecting muscle movement? Exteroceptors Proprioceptors Interoceptors NociceptorsProprioceptors The proprioceptors detect muscle movement, as well as vibration, deep pain, and equilibrium. REF: p. 94A patient has a positive Romberg sign, which means his body sways abnormally with feet together, eyes closed. When the patient opens his eyes, he stops swaying. This means the lesion is in the cerebellum. True FalseTrue If the patient had a cerebellar lesion, opening his eyes would not have corrected the swaying. That he stopped swaying means the lesion is likely to be in the dorsal columns. REF: p. 103Which of the following could be said to be true of agnosia? It can occur in one sensory modality. It is caused by a lesion to a unimodal cortical area. It results in destruction of sensory receptors. It is a fairly common disorder. It is characterized by unfamiliarity of common objects.It can occur in one sensory modality. Agnosia may be visual, auditory, or tactile and is an inability to interpret a sensory stimulus. The lesion does not involve sensory receptors, pathways, or the unimodal cortex but does involve the association cortex. REF: p. 94The fasciculus cuneatus carries information pertaining to light touch from the legs and lower body. True FalseFalse The fasciculus cuneatus carries light touch from the arms and upper torso. REF: p. 102The first-order neurons in the eyes are called ganglions. photoreceptors. amacrine cells. bipolar cells. Both B and DBoth B and D The first-order neurons in the visual system are the bipolar cells, or photoreceptors. These include rods and cones. REF: p. 105Which of the following structures would contain a second-order neuron in the somatic sensory pathway? A spinal nerve A spinal ganglion The dorsolateral fasciculus The lemniscus The ventral posterolateral nucleus of the thalamusThe lemniscus The spinal nerve, ganglion, and dorsolateral fasciculus are part of the first-order neural pathway, and the ventral posterolateral nucleus of the thalamus is the beginning of the third-order neural pathway. REF: p. 100The _________-order neuron of the somatic sensory pathway crosses over to the contralateral side. first second third both second and thirdsecond The second-order neuron crosses to the contralateral side in the medial lemniscus. The third-order neuron has already crossed. REF: p. 100Which of the following is NOT a characteristic of auditory agnosia? The patient has normal hearing acuity. The condition refers to the inability to identify nonlinguistic stimuli. The lesion resulting in auditory agnosia is unilateral. Auditory agnosia has been used to refer to the inability to identify linguistic stimuli. None of the above are true.The lesion resulting in auditory agnosia is unilateral. The site of the lesion for auditory agnosia is thought to be in the auditory association areas of both hemispheres. REF: p. 99