27. Flaccid paralysis is caused by damage to the a dorsal spinal nerves b. upper
ID: 3519006 • Letter: 2
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27. Flaccid paralysis is caused by damage to the a dorsal spinal nerves b. upper motor neurons c lower motor neurons d. dorsal root ganglion 28. Degeneration of the a. GABA neurons n the substantia nigra causes Parkinson's disease. b. dopamine neurons c. acetylcholine neurons d. myelin sheath 29. Alzheimer's disease, a progressive degenerative disease with dementia, involves loss of in the basal forebrain. a. GABA neurons b. dopamine neurons c. acetylcholine neurons d. myelin sheath 30. Which of the following is incorrect? a. Delta brain waves are emitted during deep or slow wave sleep. b. Beta brain waves are emitted when you take a test. c. The axons of sensory neurons enter the spinal cord via the ventral horm. d. Abnormal cerebellum functions cause impaired motor coordination known as ataxia. 31. The portion of the spinal cord controls skeletal muscle movement. a. ventral b. lateral c. medial d. dorsal 32. This brain region has the motor and sensory decussations (cross over). a. pons b. medulla oblongata c. thalamus d. midbrain 33. Sensory receptors that respond to touch, pressure, vibration, stretch and itch are a. mechanoreceptors b. nociceptors c. proprioceptors d. chemoreceptors 34. Which of the following is incorrect regarding the knee jerk reflex? a. It is voluntary movement under the control of the cerebellum. b. It is important for maintaining a standing position. c. It is commonly tested to check for nerve damage. d. The sensory receptor involved in this reflex is stretch receptors.Explanation / Answer
27. C. lower motor neuron
damage of neurons with lower motor neuron damage cause spinal reflexes are lost, flaccid paralysis, denervation atrophy of muscles
28.B. Dopamine neuron
caused by a degeneration of dopaminergic neurons in the substantia nigra of the midbrain.
29. D. myelin sheath
amyloid products, in turn, destroy more and more myelin, according to Bartzokis
30. C. the axon of sensory neurons enter the spinal cord via ventral horn
Correct statement: axon of motor neurons enter the spinal cord via ventral horn
31.a. Ventral
32. B. medulla oblongata
anterior median fissure of the medulla oblongata as the pyramidal decussation or motor decussation.
33. a. mechanoreceptors
They respond to stimuli arising outside the body; Found near the body surface.
34. D.
It involves conduction of nerve impulses from sensory neuron to interneuron to a motor neuron.Related Questions
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