AAET Registry Exam Questions and Detailed Answers

When the synaptic vesicles are electrically stimulated by a nerve impulse, synaptic vesicles gravitate to the outer membrane of the presynaptic wall and release acetylcholine into the synaptic cleft. The Ach molecules migrate to the postsynaptic cells where they attach to the specific receptors. When enough neurotransmitters are received by the receptors to overcome the firing threshold a CMAP is generated causing muscle contraction. This describes The events that occur in the Neuromuscular Junction What happens to the neurotransmitters after they have attached themselves to receptors and generated the muscles to contract? They are chemically broken down by enzymes and recycled back to the presynaptic terminals Maximal stimulation is appropriate for _______, while supramaximal stimulation (not over stimulation) is necessary in ________recordings. SNC, MNC Martin Gruber Anastomosis is seen when there is a: Crossover of median fibers to ulnar fibers in the forearm Define Afferent nerves: From the periphery to the cord Important muscles innervated by the axillary nerve the Deltoids Important muscles in the upper arm that are innervated by the radial nerve The triceps Which nerve innervates the posterior thigh, leg muscles, planter foot muscles and skin of the foot The tibial nerve Cell bodies of sensory neurons are housed in The dorsal root ganglion Which term means the specific region of skin belonging to a single spinal root A Dermatome The nerve most likely to be injured in fractures of the medial epicondyle is the: Ulnar nerve After a time when a motor nerve to a muscle is sectioned the muscles atrophy. If you notice that the thenar muscles are atrophied which nerve is suspected of injury? The median nerve