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Nervous System Exam NAME: _________________________________ Version A 1. Which cranial nerve number controls the motor functions of the pharynx? A. B. C. D. III VIII XI IX 2. Which cranial nerve serves to adduct the eyes? A. B. C. D. Trigeminal Occulomotor Abducens Trochelar 3. What kind of message does the Dorsal root carry? A. B. C. D. Motor message away from spinal cord Motor messages toward spinal cord Sensory message away from spinal cord Sensory messages toward spinal cord 4. What disease occurs from an inadequate production of dopamine? A. B. C. D. Alzheimer's Multiple Sclerosis ALS Parkinson's Disease 5. Which cranial nerve tests the ability of the tongue to move around? A. B. C. D. Hypoglossal Glossopharyngeal Trochlear Vagus 6. Which drug raises the levels of dopamine in the brain? A. B. C. D. Cocaine Nicotine Heroin Marijuana 7. What is a neurilemma? A. Promotes the regeneration of neurons in the CNS B. Promotes the regeneration of neurons in the Spinal cord C. Promotes the regeneration of neurons in the PNS D. Promotes the regeneration of neurons in the brain 8. Which cranial nerve has both sensory and motor functions? A. B. C. D. Abducens Vestibular Cochlear Trigeminal Hypoglossal 9. Which lobe does short term memory take place in? A. B. C. D. Frontal Temporal Occipital Parietal 10. What disease occurs from the immune system attacking the myelin sheath of neurons? A. B. C. D. Parkinson's Disease Alzheimer's Multiple Sclerosis ALS 11. What is the purpose of the fissures in our cerebral cortex? A. B. C. D. To make us smarter To decrease surface area To increase surface area To make us process information quicker 12. What does Broca's Area Control? A. B. C. D. Sensory parts of speech Memory for speech interpreting parts for speech Motor movements of Speech 13. What hormone does the pineal gland make? A. B. C. D. Melanin Oxytocin Melatonin Estrogen 14. What is the refractory period? A. The time between depolarization and repolarization B. The time after repolarization before the next impulse C. The time before depolarization D. The time during the action potential 15. What part of the brain coordinates movement, balance and muscle tone? A. B. C. D. Occipital Lobe Cerebellum Frontal Lobe Parietal Lobe 16. What kind of message does the ventral root carry? A. B. C. D. Motor messages toward spinal cord Motor message away from spinal cord Sensory message away from spinal cord Sensory messages toward spinal cord 17. What are the meninges? A. B. C. D. Outer layers of protection of the spinal cord Outer layers of protection of the brain Outer layers of a neuron A specialized form of a neuron cell 18. What is an afferent nerve? A. B. C. D. Sends motor info to the PNS Sends motor info from the PNS Sends sensory info from the PNS Sends sensory info from the CNS 19. What element is outside of the axon during resting potential? A. B. C. D. Na+ K+ Ca++ Mg++ 20. What is an efferent nerve? A. B. C. D. Sends sensory info to the PNS Sends motor info to the PNS Sends motor info from the PNS Sends sensory info from the CNS 21. Where is the hormone melatonin produced? A. B. C. D. Forebrain Hindbrain Midbrain Not in the brain 22. How many pairs of spinal nerves do we have? A. B. C. D. 30 31 32 33 23. What is the relay center for the eye and ear reflexes? A. B. C. D. Forebrain Hindbrain Midbrain Parietal lobe 24. What is cranial nerve 7? A. B. C. D. Vestibular Cochlear Olfactory Facial Vagus 25. In what lobe of the brain does taste occur in? A. B. C. D. Temporal Occipital Cerebellum Parietal 26. What is a Schwann cell? A. B. C. D. Makes Neurons Makes action potentials Makes Myelin Used in the transmission of neurotransmitters 27. What is the primary somatosensory area of the cerebral cortex? A. B. C. D. Dorsal Central Sulcus Ventral Central Sulcus Frontal Lobe Parietal Lobe 28. How many TOTAL divisions does the PNS have? A. B. C. D. 2 4 6 8 29. Are cranial nerves considered part of the CNS? A. True B. False 30. Which is NOT a way in which a drug can affect a neurotransmitter? A. Cause leakage out of a synaptic vesicle into the axon bulb B. Prevent release of the neurotransmitter into the synaptic cleft C. Promote release of the neurotransmitter into the synaptic cleft D. None of the above 31. Which cranial nerve allows us to have facial expressions? A. B. C. D. Trigeminal Facial Trochlear Vagus 32. Gray matter in the spinal cord forms which letter symbol? A. B. C. D. “U” “P” “H” “G” 33. What is Myelin made out of? A. B. C. D. Polyunsaturated fats Polysaturated fats Lipids Cholesterol 34. What is the resting potential? A. B. C. D. -40 mV +70 mV -70 mV +40 mV 36. What element is inside the axon during resting potential? A. B. C. D. K+ Ca++ Mg++ Na+ 37. What is the Somatic Nervous system? A. B. C. D. A division of the motor (efferent) nerves A division of the sensory (afferent) nerves Controls hormone balance the Another name for the Fight of Flight system 38. what contains the medulla oblongata? A. B. C. D. Pons Cerebellum Cerebral Cortex Hindbrain 39. During Depolarization what is the charge inside the axon? A. B. C. D. -70 mV +40mV -40 mV +70mV 35. What is the resting potential? A. The state of the axon after an impulse has been conducted B. The state of the axon while it is conducting an impulse C. The state of the axon not conducting an impulse D. The state of the axon when it cannot not conduct an impulse 40. Which drug prevents the uptake of dopamine in the brain? A. B. C. D. Nicotine Heroin Marijuana Cocaine 41. How thick is the cerebral cortex? A. B. C. D. 1 mm 1cm 10mm 10cm 42. During what phase of the “Nerve Impulse” are the sodium gates open and the potassium gates closed? A. B. C. D. Mebrane Polarization Depolorization Resting phase Repolarization 43. What element causes synaptic vessels to release their neurontransmitters in to the synapse? A. B. C. D. Na+ Ca2+ K+ Mg2+ 44. During depolarization, what causes the charge reversal inside the cell? A. B. C. D. Sodium rushing in Potassium rushing out Sodium rushing out Potassium rushing in 45. How do some nerve signals feel stronger than others? A. B. C. D. The frequency of the action potential increase the speed of the action potential increase the amount of the action potential increase Because some signals are more important than others 46. what connects the endocrine and nervous systems together? A. B. C. D. Hypothalamus Thalamus Pineal gland Pituitary gland 47. What is the threshold potential? A. The level of intensity a neuron needs to send a message B. The level of intensity a neuron needs to create signals C. The level of intensity a neuron needs to fire D. The level of intensity a neuron completes a message at 48. Multiple sclerosis is a disease of what part of the neuron? A. B. C. D. Axon Myelin Cell body Dendrite 49. What is the gray matter composed of in the brain and spinal cord? A. B. C. D. Interneurons Cell bodies Cell bodies and Interneurons Interneurons and Axons 50. Which lobe does smelling and hearing take place in? A. B. C. D. Frontal Occipital Parietal Temporal