1) The cells of the islets of Langerhans of the pancreas that secrete the hormone glucagon. a) B cell b) Beta cells c) Alpha cells d) Glial cells 2) The cells of the islets of Langerhans of the pancreas that secrete the hormone insulin. a) B cell b) Beta cells c) Alpha cells d) Glial cells 3) The termination of a motor neuron on the sarcolemma of a muscle fiber; the synapse is the microscopic space between the two structures a) Neuromuscular junction b) Neuropathy c) Neurolemma d) Neurotoxin 4) The neurone whose cell body originates in the cerebral cortex or brainstem and terminates within the brainstem or spinal cord a) Lower motor neuron b) Upper motor neuron c) Mixed nerve d) Motor unit 5) A multipolar neuron which connects the upper motor neurone (UMN) to the skeletal muscle it innervates. a) Lower motor neuron b) Upper motor neuron c) Mixed nerve d) Motor unit 6) A nerve that contains both sensory and motor neurons a) Lower motor neuron b) Upper motor neuron c) Mixed nerve d) Motor unit 7) A motor neuron and all of the muscle fibers its branched axon innervates a) Lower motor neuron b) Upper motor neuron c) Mixed nerve d) Motor unit 8) Queasiness that accompanies repetitive or unexpected motion. a) Motion sickness b) Muscle fatigue c) Indigestion d) Migraine

Quiz 2 for motor system

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