A basal nuclei b pineal gland c substantia nigra d

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Unformatted text preview: scle B will be inhibited, (D) Both A and C, (E) Both B and C. 30. The conus medullaris is found at level what position in the vertebral column? (A) C8, (B) L2, (C) T5, (D) the sacrum -------------------------------------------------------------------------------------------------------------------------------------------------31 through 35 Matching: Answers may be used more than once. (A) receptive region, (B) trigger region, (C) conductive region, (D) secretory region. 31. This area contains only chemically gated ion channels. 32. Contains vesicles of neurotransmitter. 33. This area possesses only voltage gated ion channels. 34. This area is the long process of the axon. 35. This area is the axon hillock of multipolar neurons. 36. Cerebrospinal fluid is found in which of the following: (A) central canal of spinal cord, (B) subdural space, (C) subarachnoid space, (D) pia mater, (E) all of the above, (F) all except D. 37. An epidural anesthetic is applied: (A) between the dura mater and the arachnoid, (B) outside the dura mater, (C) beneath the arachnoid. 38. In the knee jerk reflex, tapping the patellar tendon with a rubber mallet simulates: (A) tendon and muscle stretch, (B) tendon stretch and muscle contraction, (C) a withdrawal reflex. class=Section4> 39. Saltatory conduction makes impulse transmission faster in the: (A) peripheral nerve, (B) spinal tract. 40. When withdrawal from pain occurs in one limb, _____ will usually occur in the corresponding limb on the other side. (A) flexion, (B) extension, 41. The intensity of a stimulus corresponds to: (A) the frequency of sensory stimuli, (B) the number of sensory neurons involved 42. The event which happens immediately after and as a result of calcium ions released into the axon is: (A) opening of chemically-regulated ion gates, (B) opening of voltage-regulated ion gates, (C) exocytosis of neurotransmitter from pre-synaptic membrane, (D) depolarization of post-synaptic membrane. -------------------------------------------------------------------------------------------------------------------------------------------------Questions 43 through 50 apply to diagram below. Assume a repetitive movement of the elbow such as in rowing. The movement occurring to initiate the reflex is elbow flexion. 43. The receptor for this reflex is: (A) muscle spindle, (B) Golgi tendon organ. 44. This reflex is called a reflex. (A) stretch, (B) tendon, (C) crossed extensor, (D) withdrawal. 45. Neuron #3 is: (A) multipolar, (B) unipolar, (C) bipolar. 46. Neuron #1 is: (A) multipolar, (B) unipolar, (C) bipolar. 47. Neuron #2 is: (A) an inhibitory motor neuron, (B) an excitatory motor neuron. 48. Reciprocal inhibition is shown by: (A) pathway 1, (B) pathway 2, (C) pathway 3, (D) not shown. 49. Reciprocal activation is shown by: (A) pathway 1, (B) pathway 2, (C) pathway 3, (D) not shown. 50. Part 4 is located in: (A) the dorsal root ganglion, (B) the ventral root ganglion, (C) the gray matter. Nervous System 1. A, 2. A, 3. B, 4. B, 5. C, 6. D, 7. F, 8. A, 9. F, 10. E, 11. C, 12. D, 13. B, 14. F, 15. C, 16. G, 17. H, 18. E, 19. C, 20. B, 21. F,...
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.

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