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CNIM - ABRET Practice Exam Questions and answers
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CNIM - ABRET Practice Exam Questions and answers
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CNIM - ABRET Practice Exam Questionsand answers
Cavities inside the skull - Anterior/middle/posterior fossa
Cranial bones - Frontal, occipital, sphenoid, ethmoid (unpaired). Parietal &
temporal (paired).
Mental protuberance - chin bone
MCA supply of the cerebral cortex - Hand + face/mouth/auditory
Cranial nerves - -12 pairs (Mixed fibers: sensory/motor/both).
-Emerge @ irregular intervals from the brain.
-Nuclei displacement:
Motor = medial Sensory = lateral
Meckle's Cave - Depression in the medial middle fossa where CN V ganglion sits
Low frequency sounds - @ apex of cochlea
,CNIM - ABRET Practice Exam Questions
and answers
Area of spine w/ small pedicles, long spinous process, large inter-vertebral
foramen - Thoracic
Neuroforamen - Opening w/in the spinal canal for nerve roots to enter the SC
Firm outer layer of the disc - Annulus fibrosis
Syrinx - Fluid-filled cavity @ center of the SC
Spinal cord ends @ the level btwn: - L1-L2 vertebrae (Conus Medullaris)
Blood supply to the SC consists of: - 1 ASA for both MEP tracts
Hydrostatic pressure - Depends on body position
Structural functional anatomy may be altered by: - Previous lesions, current,
plasticity, pressure
Glia cell - Comes from the Greek word "glue"
,CNIM - ABRET Practice Exam Questions
and answers
Large diameter nerve fiber (vs. small diameter) - -Recruited 1st w/ INC'd stim
intensity
-Higher conduction velocity
-More vulnerable to hypoxia & pressure Δ's
Synaptic transmission, and/or Δ's in thalamocortical projections, produce -
Cortical potentials
Peripheral nerve sensitivity - Least sensitive to injury (more sensitive = SC
grey/white mater, cortical grey matter)
Cavernous angiomas - Multi-lobulated lesions containing hemorrhage
Geriatric population: prevalence of temporal bone hyperostosis - 10-15%
Presbycusis - High freq hearing loss; gradually occurs in older individuals
Most commonly injured CN - Facial nerve (VII)
, CNIM - ABRET Practice Exam Questions
and answers
Burst fracture - -Break in the vertebra
-Failure of anterior & middle vertebral columns
-Caused by violent compressive event (fall, MVA)
Excessive neck flexion in sitting position - Quadraparesis (due to ischemia in upper
T-spine)
Lhermittes Sign - Shocking sensation that occurs throughout the body during neck
flexion
Central Cord Syndrome (CCS) - -Sacral sparing
-Loss of sensory/motor fx @ level of injury
-Disruption of grey matter
(+) Babinski Sign could indicate - -severe [UMN] SC trauma
-abnml PTN SSEPs
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