Nervous System Practice Test (Multiple Choice Questions) Correct!!

and ready to be developed; therefore, additional learning can occur throughout life D) increased efficiency of the sympathetic nervous system enhances the ability to learn E) learning throughout the adult and aging years is supported primarily by glial proliferation A - ANSWER Lobe movements:that contains the primary motor area that enables voluntary control of skeletal muscle A) frontal lobe B) occipital lobe C) parietal lobe D) diencephalon E) temporal lobe D - ANSWER 17) The elevated ridges of tissue on the surface of the cerebral hemispheres are known as __________ while the shallow grooves are termed __________. A) sulci; gyri B) tracts; ganglia C) ganglia; gyri D) gyri; sulci E) receptors; effectors C - ANSWER An action potential is caused by an influx of these ions into the cell: A) both potassium and sodium B) potassium C) sodium D) magnesium E) calcium A - ANSWER The function of the olfactory nerve concerns: A) smell B) chewing C) vision D) eye movement E) hearing B - ANSWER The gap between two communicating neurons is termed: A) node of Ranvier B) synaptic cleft C) effector D) cell body E) Schwann cell B - ANSWER Which of the nerves plexuses originates from ventral rami - A) brachial B) lumbar C) sacral D) Spinal E) cervical C - ANSWER The area of the brain stem that plays a role in consciousness and the awake/sleep cycles is the: A) cerebellum B) thalamus C) reticular activating system (RAS) D) pineal gland E) limbic system E - ANSWER A neuron with a cell body located in the CNS whose primary function is connecting other neurons is called a(n): A) efferent neuron B) glial cell C) afferent neuron D) satellite cell E) association neuron B - ANSWER Afferent nerves are called __________, and motor nerves are called __________. A) peripheral nerves; cranial nerves B) sensory nerves; efferent nerves C) cranial nerves; peripheral nerves D) motor nerves; sensory nerves E) mixed nerves; motor nerves D - ANSWER Loss of muscle coordination results from damage to the: A) hypothalamus B) cerebrum C) midbrain D) cerebellum E) thalamus D - ANSWER The olfactory area is found within the: A) occipital lobe B) parietal lobe C) frontal lobe D) temporal lobe E) pyramidal tract D - ANSWER The sciatic nerve is the largest nerve in the body resulting from a combination of which two nerves: A) pudendal and femoral nerves B) pudendal and common peroneal nerves C) pudendal and tibial nerves D) common fibular and tibial nerves E) femoral and tibial nerves D - ANSWER The substance that is released at axonal endings to propagate a nervous impulse is called: A) an ion B) an action potential C) the sodium-potassium pump D) a neurotransmitter E) nerve glue E - ANSWER Impulse conduction is fastest in neurons that are: A) sensory B) unmyelinated C) cerebral D) motor E) myelinated A - ANSWER Which one of the following represents the correct sequence from outermost to innermost layers of the meninges: A) dura mater, arachnoid mater, pia mater B) pia mater, dura mater, arachnoid mater C) arachnoid mater, dura mater, pia mater D) dura mater, pia mater, arachnoid mater E) pia mater, arachnoid mater, dura mater A - ANSWER The nerve that contains sensory fibers that are involved in hearing is: A) cranial nerve VIII B) cranial nerve II C) cranial nerve IX D) cranial nerve III E) cranial nerve V A - ANSWER The diffusion of potassium ions out of a neuron causes it to experience: A) repolarization B) an action potential C) a nerve impulse D) a graded potential E) depolarization B - ANSWER Damage to this nerve results in ʺwristdrop,ʺ the inability to extend the hand at the wrist: A) obturator B) radial C) axillary D) phrenic B - ANSWER 34) Spinal nerves exiting the cord from the level of L4 to S4 form the: A) lumbar plexus B) sacral plexus C) femoral plexus D) obturator plexus E) thoracic plexus B - ANSWER 35) Which of the following is a traumatic brain injury: A) aphasia B) cerebral edema C) cerebrovascular accident (CVA) D) Parkinsonʹs disease E) Alzheimerʹs disease A - ANSWER The peripheral nervous system consists of: A) the spinal and cranial nerves B) the brain and spinal cord C) spinal nerves only D) cranial nerves only E) the brain only E) femoral B - ANSWER The neuron processes that normally receive incoming stimuli are called: A) Schwann cells B) dendrites C) neurolemmas D) satellite cells E) axons E - ANSWER Which of the nerve plexuses serves the shoulder and arm: A) sacral B) cervical C) phrenic D) lumbar E) brachial A - ANSWER Preparing the body for the ʺfight-or-flightʺ response during threatening situations is the role of the: A) sympathetic nervous system B) somatic nervous system C) cerebrum