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)
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