2024 CNIM Muscle Anatomy Latest Questions With Complete Grade A Answers
- Electromyography (EMG)
Answer:
-A record of electrical activity of a muscle.-Subdermal needle electrodes into skin over muscle.-Can be rendered unhelpful by neuromuscular blockade.-Includes spontaneous EMGs and triggered EMGs.
- Innervation
Answer:
-Irritation of nerve roots in surgery result in depolarization in nerve, resulting in contraction of innervated muscles.-Targets muscles that will show activity in response to nerve root irritation.
- Neuromuscular Blockade
Answer:
-Used during surgery to prevent patient from moving and to allow anesthesiologist to vent the patient.-Blockage of neuromuscular junction.-Prevents muscles from contracting, and therefore makes it impossible to detect nerve root irrigation.
- Spontaneous EMG (sEMG)
Answer: -Used to protect cranial nerves and spinal root nerves due to mechanical injury and thermal injury.
- Triggered EMG (tEMG)
Answer:
-Used to confirm that nerve pathways are still intact.-Used to differentiate nerve tissue from surrounding tissue.
- EMG Electrodes
Answer: -Require two input for each output so as to detect low amplitude signals.
- Peripheral Nervous System
Answer: -31 spinal nerves
- Cervical Spine
Answer: -7 vertebrae
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