SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.Figure 13.1Using Figure 13.1, match the following:1)Innervates the superior oblique muscle.1)2)Longest cranial nerve.2)3)Damage to this nerve would cause dizziness, nausea, and loss of balance.3)4)Involved in movement of the digestive tract.4)5)Damage to this nerve would cause difficulty in speech and swallowing, but no effect onvisceral organs.5)6)Damage to this nerve would keep the eye from rotating inferolaterally.6)1Figure 13.2Using Figure 13.2, identify the following components of the reflex arc:7)Integration center.7)8)Sensory neuron.8)9)Effector.9)10)Motor neuron.10)11)Receptor.11)MATCHING. Choose the item in column 2 that best matches each item in column 1.Match the following:12)Formed by the union of a cranial and aspinal root.13)Receptors located in epithelium of thenasal cavity.14)Serves the senses of hearing andequilibrium.15)Helps to regulate blood pressure anddigestion.16)Turns the eyeball laterally.A)AccessoryB)AbducensC)VestibulocochlearD)OlfactoryE)Vagus12)13)14)15)16)2Match the following reflexes to their function:17)Tests both upper and lower motorpathways. The sole of the foot isstimulated with a dull instrument.18)Consists of an ipsilateral withdrawalreflexand a contralateral extensor reflex;importantin maintaining balance.19)Produces a rapid withdrawal of thebody part from a painful stimulus;ipsilateral.20)Prevents muscle overstretching andmaintains muscle tone.21)Produces muscle relaxation andlengthening inresponse to tension; the contractingmusclerelaxes as its antagonist is activated.A)Crossed-extensorB)FlexorC)StretchD)PlantarE)Golgi tendon17)18)19)20)21)Match the following:22)The obturator and femoral nervesbranch from this plexus.23)Striking the "funny bone" (ulnarnerve) may cause injury to a nerve ofthis plexus.24)Trauma to a nerve of this plexus maycause wrist drop.25)A fall or improper administration ofan injection to the buttocks may injurea nerve of this plexus.26)The phrenic nerve branches from thisplexus.A)Brachial plexusB)Lumbar plexusC)Sacral plexusD)Cervical plexus22)23)24)25)26)3Match the following:27)Controls the outputs of the cortex andregulates motor activity.28)Central pattern generators.29)Intermediate relay for incoming andoutgoing neurons.30)The cerebellum and basal nuclei.31)Includes cortical and brain stem motorareas.32)The neural machinery of the spinalcord, including spinal cord circuits.A)Segmental levelB)Precommand levelC)Projection level27)28)29)30)31)32)SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.Figure 13.3Using Figure 13.3, match the following:33)Contain autonomic nerve fibers.33)34)Supplies the posterior body trunk.34)35)Supplies all of the body except the posterior.35)36)All but T2T12 branch and form nerve plexuses.36)37)Supplies each muscle with fibers from more than one nerve.37)4TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.38)The meningeal branch of a spinal nerve actually reenters the vertebral canal to innervate themeninges and blood vessels.38)39)In the somatosensory system there are no third-order neurons in the cerebellum.39)40)There are 41 pairs of spinal nerves.40)41)The glossopharyngeal nerve is the only cranial nerve that contains sensory fibers.41)42)The musculocutaneous nerve is a major nerve of the brachial plexus.42)43)The second cranial nerve forms a chiasma at the base of the brain for partial crossover of neuralfibers.43)44)The only cranial nerves to extend beyond the head and neck region are the vagus nerves.44)45)The dorsal ramus consists only of motor fibers bringing information to the spinal cord.45)46)Dermatomes are skin segments that relate to sensory innervation regions of the spinal nerves.46)47)Dorsal and ventral rami are similar in that they both contain sensory and motor fibers.47)48)Irritation of the phrenic nerve may cause diaphragm spasms called hiccups.48)49)The obturator nerve branches from the sacral plexus.49)50)Reciprocal inhibition means that while one sensory nerve is stimulated, another sensory neuron forsynergistic muscles in the same area is inhibited and cannot respond.50)51)External strabismus and ptosis could be caused by damage to the oculomotor nerve.51)52)The cerebellum and basal nuclei are involved in regulating motor activity, startingand stopping movements, and coordinating postural movements.52)MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.53)The patellar "knee jerk" reflex is an example of a(n) ________.A)crossed-extensor reflexB)extensor thrust reflexC)stretch reflexD)stress reflex53)54)The ________ nerve is not a branch of the trigeminal nerve.A)ophthalmicB)mandibularC)cervicalD)maxillary54)55)Which of the following nerves does not arise from the brachial plexus?A)radialB)phrenicC)ulnarD)median55)556)Which of the following is not an example of an exteroceptor?A)baroreceptorB)pressureC)touchD)painE)temperature56)57) Which of the following is not a main level of neural integration in the somatosensory system?A)circuitB)receptorC)perceptualD)segmental57)58)The posterior side of the thigh, leg, and foot is served by the ________ nerve.A)tibialB)common fibularC)obturatorD)femoral58)59)Starting at the spinal cord, the subdivisions of the brachial plexus are (in order):A)trunks, divisions, cords, and rootsB)divisions, roots, trunks, and cordsC)roots, trunks, divisions, and cordsD)roots, divisions, cords, and trunks59)60)The cranial nerve with a dual origin (brain and spinal cord) is the ________.A)vagusB)glossopharyngealC)accessoryD)hypoglossal60)61)Which of the following is an incorrect statement regarding the occurrence of a sensation?A)The stimulus energy must match the specificity of the receptor.B)A generator potential in the associated sensory neuron must reach threshold.C)The stimulus energy must be converted into the energy of a graded potential called a transduction potential.D)The stimulus energy must occur within the receptor’s receptive field.61)62)A major nerve of the lumbar plexus is the ________.A)iliohypogastricB)femoralC)sciaticD)ilioinguinal62)63)Spinal nerves exiting the cord from the level of L4 to S4 form the ________.A)sacral plexusB)thoracic plexusC)femoral plexusD)lumbar plexus63)64)The abducens nerve ________.A)relays sensory information from taste buds on the tongueB)supplies innervation to the