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NWHSU Mash CNS1 funt

NWHSU Mash CNS1 Neurofunction

QuestionAnswer
A person has loss of pain and temperature in dermatomes T7-T12 bilaterally. All other sensations and voluntary motor control are normal. Mark the most likely site of a nonvascular lesion on the diagram and label the spinal segments involved. ?draw large lesion around central canal, spinothalamic (neo and paleo) cross anterior to central canal ONLY T7-12 dermatomes are affected, no pain deficits below or above lesion. Motor control is not affected b/c not close enough to lesion.
A person complains of sudden onset paralysis of all muscles of facial expression on the left side of the face. Where is the lesion? peripheral nerve problem along CN VII (Facial), bony canal where it enters on left
A person complains of sudden onset paralysis of all muscles of facial expression on the left side of the face. What other deficits may also be present: decreased salivation, decreased taste sensation, decreased pain on the entire side of the right face, d ?decreased taste sensation, salvation
Consider a hemidissection of the R T3 spinal cord. Which of the following deficits is likely? Pain, discriminating touch, and voluntary motor control- r. arm, l. arm, r. leg, l. leg, no deficit Pain: Left leg, DT: Right leg, voluntary motor control: right leg
Consider a RIGHT hemidissection of the C2 spinal cord. What areas will have a deficit in pain? What area will have a deficit in discriminating touch? Conscious proprioception? R arm, L arm, R leg, L leg, R cheek, R forehead pain: L arm, L leg, R cheek; discriminating touch: R arm, R leg; conscious proprioception: R arm, R leg
Consider a hemidssection of the R C2 spinal cord. What sensory deficits are expected in the following: R arm; L leg; R cheek; R C2 dermatome from answer options: Pain; Discriminating touch; Conscious proprioception; No deficit expected R arm: discrimingating touch, conscious proprioception; L leg: pain; R cheek: pain; R C2 dermatome: (all of them) pain, discriminating touch, conscious proprioception
Consider a right hemidissection of the C2 spinal cord. What deficits are expected in the R C2 dermatome? Pain, Crude touch, Vibration, Discriminating Touch All of them: Pain, Crude touch, Vibration, Discriminating Touch
consider a lesion in the genu of the RIGHT internal capsule A) what sensory deficits are expected in the arms? B) what sensory deficits are expected in the face? A) None only head/face B) all on left side
Consider an interruption of fibers of the R genu. Which of the following motor deficits are likely? Inability to chew on the right; Inability to smile on the left; Inability to close the left eye; Inability to open the right eye Inability to smile on the left; Inability to close the left eye
Consider an anterior cavitation of the central canal in the T5-8 spinal cord. What areas of the body have a pain deficit? What areas have a DT deficit? Pain: only dermatomes of T5-8 bilaterally, DT: none
consider an anterior cavitation of the central canal in the T5-8 spinal cord: A) which areas would have pain deficit B) which areas would have discriminating touch deficit A) just dermatomes of T5-8 bilaterally B) none
Lesion with the following signs: loss of pain, temp, CT, and pressure in dermatomes T5-8 bilaterally. Where is the site of the lesion? Ant. Commissure from T5-8 only
Occlusion of L. Posterior inferior cerebellar a. Pain, DT, and Voluntary motor deficits? Pain: R arm and leg, DT: No deficit, voluntary motor control: no deficit expected
Occlusion of R. Anterior cerebral a. Which deficits is most likely? DT? Voluntary motor? R. leg, L. Leg, R. face, L. face, no deficit. DT: L. Leg, Voluntary motor: L. Leg
Consider the reticular nuclei that project to autonomic nuclei. Which afferents to these reticular nuclei would be especially important for the control of blood pressure? hypothalamus and visceral afferents
Consider the non-specific group of thalamic nuclei. In general, they project to ____. What tracts bring general sensation (from body and head)to nuclei? What is general function of nuclei? ?cortex; paleospinothatlamic and ventral trigeminothalamic; interconnect or "associate" brain areas
give the source of afferents to non-specific group of thalamic nuclei: A) with general sensation from the body (name the tract) paleospinothalamic
give the source of afferents to non-specific group of thalamic nuclei: B) with general sensation from the head ventral trigeminothalamic tract
Give the source of afferents to the non-specific group of thalamic nuclei: w/ gen. sensation from body, gen sens from head, in pathway for reticular activation. Paleospinothalamic tract, ventral trigeminothalamic tract, reticular nuclei.
Name 2 groups of fibers which bring general sensation to reticular nuclei from the spinal cord ?spinoreticular, paleospinothalamic
Name the 2 major sources of information to the reticular nuclei that they use to affect homeostasis ?all sensation, hypothalamus (a/efferent with autonomics and endocrine)
What information is carried by fasciculus cuneatus T6 and up: discriminating touch, conscious proprioception; AND unconscious proprioception (cuneocerebellar tract) both from same side
What modalities are carried in the R. ventral trigeminothalamic tract at the level of the closed medulla? (include side) L pain, temp, some crude touch and pressure (no DT from chief sensory of V b/c at mid pons level)
which region of cerebral cortex deals with personality, emotions, and judgement prefrontal cortex (limbic)
What is the general function of nuclei of the subthalamus? motor
Created by: AnatomyMash
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