ASET CNIM Exam 2023 with correct answers

Resting membrane potential is created by differences between the inside and outside of the cell in ion concentrations of 1. K+ 2. K+ and Ca++ 3. K+, Na+ and Cl- 4. Na+, Ca++ and Cl- K+, Na+, and Cl- Excitation of the postsynaptic neuron is caused by the neurotransmitter 1. gamma amino butyric acid 2. glycine 3. para amino butyric acid 4. glutamate Glutamate Wave III of the BAER is generated by the 1. superior olivary complex 2. inferior colliculus 3. lateral lemniscus 4. medial geniculate Superior olivary complex Lying between the adjacent surfaces of the vertebral bodies and bonding them together, are the 1. pedicles 2. intervertebral discs 3. supraspinous ligaments 4. spinal nerves Intervertebral discs Which of the following UE SSEP response is considered a "stationary potential" 1. N20 2. N13 3. P14 4. N18 N13 The initial waveform recorded of a near-field potential is 1. always obscured by stimulus artifact 2. negative due to depolarization of membrane potentials 3. positive due to electronic depolarization of the membrane under the recording electrode 4. of very low amplitude due to the significant distance between the generator and recording electrode Positive due to electrotonic depolarization of the membrane under the recording electrode Nerves of the body, such as the ulnar, median, and femoral, are formed from the 1. white matter of the spinal cord 2. dorsal and ventral rami 3. cervical spinal cord 4. ventral ganglion Dorsal and ventral rami On the SSEP, the electrode at ________ records a spinal cord response 1. T12 2. CPz 3. the iliac crest 4. the popliteal fossa T12 Projecting laterally from the junction of the pedicle and lamina and serving as a lever for muscle and ligaments, are the 1. intervertebral discs 2. mamillary processes 3. intervertebral foramen 4. transverse processes Transverse processes Synaptic transmission, and/or changes in the thalamocortical projections, are believed to produce 1. subcortical potentials 2. cortical potentials 3. the erb's point potential 4. the P100 potential Cortical potentials The section of the brainstem that is continuous with the spinal cord and includes the decussation of the pyramids, is the 1. medulla oblongata 2. pons 3. dorsal column 4. midbrain medulla oblongata The ulnar nerve originates from nerve roots at 1. C5-C6 2. C6-C7 3. C7-C8 4. C7-T1 C7-T1 The common peroneal nerve arises from the superior angle of the popliteal fossa of the 1. superior tibial nerve 2. superior femoral nerve 3. internal popliteal nerve 4. sciatic nerve Sciatic nerve