40. The A) Sympathetic division of the autonomie nervous system is B) Parasympat
ID: 3515876 • Letter: 4
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40. The A) Sympathetic division of the autonomie nervous system is B) Parasympathetie rate, and releasing adrenaline from the adrenal glands C) Somatic D) Central 41. In a neuron, the greatest concen A) cell body B) synaptic bulbs C) dendrites D) axolemma 42. The main functions of the spinal cord include all but which of the following? A) conduction B) locomotion reflexes D) synthesis of sensory input 43. The nerve responsible for the majority of ie function is A) Optic C) Vagus D) lear Nerves E) Hypoglossal Nerves 44. The four major portions of the brain include all BUT the A) corpus callosum. B) cerebellum. C) brainstem. D) cerebrum. 45. Which of the following is the most superior portion of the brain stem? A) medulla oblongata B) midbrain C) pons D) cerebellum 46. List all cranial nerves from 1 to 12 in order, running superficial to deep. A) What? You said we didn't have to know the numbers B) I didn't even know there were 12 cranial nerves 47. Many medications introduced into the bloodstream cannot directly affect the neurons of the CNS because A) oligodendrocytes form a continuous myelin sheath around the axons. B) the endothelium of CNS capillaries forms a blood-brain barrier. C) the neurolemma is impermeable to most molecules. D) ependymal cells restrict the flow of interstitial fluid between the capillaries and the neurons. C) I will just pick C and hope for the best (recommended).Explanation / Answer
40. A Sympathetic. It is responsible for all the given activities and is activated in emergency.
41.B synaptic bulbs. They are small vesicles containing bodies filled with NT.
42. D. Synthesis of sensory input.
43. C vagus. It has widespread reach and responsible for 70-80% functions.
44. A corpus callosum. It has lesser function and only acts as a connecting bridge.
45. D cerebellum. Anatomically most superior.
46. 1- olfactory, 2- optic, 3- occulomoter, 4- trochlear, 5- trigeminal, 6- abducens, 7- facial, 8- vestibulocochlear, 9- glossopharyngeal, 10- vagus, 11- accessory, 12- hypoglossal.
47. B The endothelium of CNS forms the blood brain barrier. This leads to selective transport of lipid soluble material accross and to the brain.
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