Unit 2 MCQB Part 3
250) Which of the following neuroglia would be found in the peripheral nervous system? a) satellite cells b) astrocytes c) oligodendrocytes d) microglia
a
252) Ependymal cells line brain ventricles and form cerebral spinal fluid. a) True b) False
a
260)Which neuroglia are thin and regulate the exchange of materials between the interstitial fluids and neuron cell bodies? a) satellite cells b) ependymal cells c) microglial cells d) oligodendrocytes
a
287) The central canal of the spinal cord is located in the center of the: a) gray commissure. b) anterior (ventral) white commissure. c) anterior (ventral) gray horns. d) posterior (dorsal) white columns.
a
293) The lateral gray horns a) contain the cell bodies of autonomic motor neurons. b) contain the cell bodies of somatic sensory neurons. c) contain the cell bodies of autonomic sensory neurons. d) A and B e) A and C
a
303) Which of the following contain cell bodies of sensory neurons? a) posterior (dorsal) root ganglia b) anterior (ventral) gray horns c) posterior (dorsal) gray horns d) lateral gray horns e) A and B
a
309) Which of the following has branches that belong to the sympathetic nervous system? a) Rami communicantes b) Anterior (ventral) rami c) Posterior (dorsal) rami
a
338) The sciatic nerve is composed of two nerves. One of them is the: a) tibial b) posterior femoral cutaneous c) inferior gluteal d) pudendal
a
339) The sciatic nerve is composed of two nerves. One of them is the common fibular (peroneal). a) True b) False
a
268) A _____ refers to a small mass of nervous tissue, consisting primarily of neuron cell bodies, outside of the brain and spinal cord. a) nucleus b) ganglion c)nerve d)tract
b
219) _____ (or motor) impulses travel from the _____ to the _____ (muscles or glands). a) Efferent, effectors, central nervous system b) Afferent, central nervous system, effectors c) Efferent, central nervous system, effectors d) Afferent, effectors, central nervous system
c
226) Select the best description of Nissl bodies: a) accumulate as yellow-brown granules as the cell ages b) form(s) part of the cytoskeleton c) rough endoplasmic reticulum d) usually short and branched
c
231) The axon hillock is the part of a neuron that: a) passes nerve impulses directly to another cell. b) stores neurotransmitters in vesicles. c) connects the axon to the neuron cell body. d) gives rise to axon collaterals.
c
234) Select the best description of neurotransmitter molecules: a) accumulate as yellow-brown granules as the cell ages b) fine processes at the ends of axons c) stored in synaptic vesicles d) usually short and branched
c
217) The CNS a) does not include structures in the peripheral nervous system.. b) is composed of the brain and spinal cord. c) includes the cranial nerves. d) A and B e) A and C
d
261)During a histological study of nervous tissue from the CNS, myelin is observed surrounding the axons of the neurons. Based on the presence of the myelin, what other conclusion can be made for this specimen? a) oligodendrocytes are present b) Schwann cells are present c) Microglial microglial cells are present d) ependymal cells are present
a
262)During a histological survey of nervous tissue, columnar cells with cilia and microvilli were observed under the microscope. What is the most likely source of the tissue sample?a) brain ventricles b) white matter of spinal cord c) gray matter of braind) ganglion of PNS
a
279) The adult spinal cord extends from the _____ of the brain inferiorly to the superior border of the _____ lumbar vertebra. a) Medulla oblongata, second b) Medulla oblongata, fourth c) Midbrain; first d) Pons; third
a
280) The cervical enlargement is a bulge in the spinal cord containing cell bodies of motor neurons supplying the upper limb. a) True b) False
a
286) The posterior median sulcus is a shallow groove on the dorsal side of the spinal cord. a) True b) False
a
294) In what region of the spinal cord is there the most white matter? a) Cervical b) Coccygeal c) Sacral d) Lumbar e) Thoracic
a
253) Microglia are the electrically exciteable cells of the CNS. a) True b) False
b
333) Select the muscle(s) served by the femoral nerve. a) tibialis anterior and fibularis (peroneal) muscles b) extensor muscles of knee joint c) adductor muscles of thigh d) gluteus maximus e) gastrocnemius and soleus muscles
b
344) a typical reflex arc involves the following components: 1.sensory neuron 2.motor neuron 3.sensory receptor 4.integrating center 5.effector The correct order is: a) 3,2,1,5 b) 3,1,4,2,5 c) 3,4,1,2,5 d) 3,4,2,5 e) 2,1,4,3
b
345) Which of the following could serve as an effector for a somatic reflex? a) gland. b) skeletal muscle. c) smooth or cardiac muscle. d) all of these choices
b
304) In lab you examine a nervous system tissue slide and identify satellite cells around unipolar neuron cell bodies. Which of the following classifications would be correct? a) white matter nerve of CNS b) anterior (ventral) root ganglion of PNS c) posterior (dorsal) root ganglion of PNS d) gray matter nucleus of CNS e) whiter matter tract of PNS
c
308) Which of the following has a branch that forms nerves serving the limbs? a) Rami communicantes b) Posterior (dorsal) rami c) Anterior (ventral) rami
c
319) From which plexus does the great auricular nerve arise? a) sacral b) brachial c) cervical d) lumbar e) thoracic
c
305) Motor neurons that supply skeletal muscles have cell bodies in _____ gray horns of the spinal cord, and their axons exit the cord via a/an _____ root. a) posterior (dorsal), anterior (ventral) b) anterior (ventral), posterior (dorsal) c) posterior (dorsal), posterior (dorsal) d) anterior (ventral), anterior (ventral)
d
306) Which of the following is NOT a branch of a spinal nerve? a) ramus communicans (plural: rami communicantes) b) anterior (ventral) ramus c) meningeal branch d) lateral ramus
d
310) Spinal nerves T2-T12 differ from all other spinal nerves in that: a) the posterior (dorsal) rami form a plexus. b) they do not branch to form rami. c) they are autonomic nerves. d) the anterior (ventral) rami do not contribute to a plexus.
d
311) Which peripheral nerves are responsible for cutaneous sensation from the skin of the anterior abdominal wall as well as motor innervation to anterior abdominal wall muscles? a) median and musculocutaneous nerves b) inferior and superior gluteal nerves c) sciatic and sural nerves d) intercostal (thoracic) nerves
d
232) Select the best description of axon terminals: a) fine processes at the ends of an axon b) side branches along the length of an axon c) stored in synaptic vesicles d) join axon to cell body
a
238) Which neuron type has only two cell major processes attached to its cell body? a) Bipolar b) Multipolar c) Unipolar
a
245) Which of the following statements is FALSE regarding oligodendrocytes? a) They line the fluid-filled ventricles of the brain. b) They are not as numerous as astrocytes. c) They are smaller than astrocytes. d) They form myelin sheaths around central nervous system axons.
a
343)The two main routes for motor information traveling down the spinal cord are _____ pathways and _____ pathways. a)direct, indirect b)corticospinal, posterior column c)anterior spinocerebellar, posterior spinocerebellar d)gracilis fasciculus, cuneate fasciculus
a
257) Which neuroglia form a single layer that possesses microvilli and cilia to circulate cerebrospinal fluid? a) microglia b) ependymal cells c) astrocytes d) Schwann cells
b
267)Which of the following is/are NOT found in high levels in gray matter of nervous tissue? a) neuron cell bodies b) myelinated axons c) neuroglia d) dendrites e) AandB
b
216) The nervous system consists of two main interconnected anatomical divisions. They are the ______ and the ______. a) central nervous system (PNS); peripheral nervous system (CNS) b) central nervous system (CNS); peripheral nervous system (PNS) c) sensory nervous system (SNS); motor nervous system (MNS) d) A and B e) A and C
b
227) Select the best description of dendrites: a) accumulates as yellow-brown granules as the cell ages b) usually short and branched c) stored in synaptic vesicles d) usually myelinated
b
228) Dendrites are processes of a neuron that: a) carry nerve impulses away from the neuron cell body. b) contain numerous receptor sites for binding chemical messengers from other cells. c) are usually longer than axons. d) are usually myelinated. e) none of these choices
b
229) Which of the following correctly describes dendrites? a) They are found only in the CNS. b) They receive information from receptors or other neurons. c) They generate the axon potential. d) They are found only in the PNS.
b
230) Select the best description of an axon: a) accumulates as yellow-brown granules as the cell ages b) carries nerve impulses toward another neuron, a muscle fiber, or a gland cell c) contains a nucleus surrounded by cytoplasm d) receiving or input portion of a neuron e) none of the above
b
235) Which structure of the neuron will contain the greatest number of neurotransmitter receptors? a) the Nissl bodies b) the dendrites c) the axoplasm d) the synaptic vesicles
b
236) At a synapse between the axon of one neuron and the dendrite of another neuron, the axon would be part of a _____ neuron; the dendrite would be part of a _____ neuron. a) postsynaptic, presynaptic b) presynaptic, postsynaptic c) visceral, somatic d) somatic, visceral
b
237) Which structure of the neuron is included in the neuromuscular junction? a) the cell body (perikaryon) b) the axon terminal c) the axon hillock d) the dendrites
b
239) This functional neuron type is structurally a multipolar neuron. a) Sensory b) Motor
b
243) Which type of neuroglia forms and maintains the protective covering around the axons of the CNS? a) ependymal cells b) oligodendrocytes c) microglia d) astrocytes
b
247) Select the best description of the ependymal cells: a) form myelin sheaths in the central nervous system b) form lining of brain ventricles c) help maintain the blood-brain barrier d) surround neurons in peripheral nervous system ganglia
b
248) Select the best description of the oligodendrocytes: a) surround neurons in peripheral nervous system ganglia b) form myelin sheaths in the central nervous system c) help maintain the blood-brain barrier d) form myelin sheaths in the peripheral nervous system
b
251) Select the best description of the microglia: a) help maintain the blood-brain barrier b) phagocytes of the central nervous system c) phagocytes of the peripheral nervous system d) form lining of brain ventricles
b
256) Select the best description of the satellite cells: a) form myelin sheaths in the central nervous system b) surround cell bodies in peripheral nervous system ganglia c) help maintain the blood-brain barrier d) form lining of brain ventricles
b
269)Which of the following pairs of terms is most closely matched? a) gray matter, myelinated axons of the peripheral nervous system b) white matter, tracts in the central nervous system c) white matter, neuron cell bodies in a ganglion d) gray matter, Schwann cells (neurolemmocytes) in the peripheral nervous 280) system
b
271) The spinal cord is NOT protected by which of the following? a) vertebral column b) cranial bones c) meninges d) cerebrospinal fluid e) AandB
b
272) What is the best description of the epidural space? a) between dura mater and arachnoid mater b) contains a protective cushion of fat and connective tissue c) between arachnoid mater and pia mater d) contains interstitial fluid e) contains cerebrospinal fluid
b
273) What is the best description of the dura mater? a) between pia mater and spinal cord b) meninx closest to the bone of the vertebral column c) between arachnoid mater and pia mater d) contains blood vessels that supply oxygen and nutrients to the spinal cord e) consists of collagen and elastic fiber network; has no blood vessels
b
276)Cerebrospinal fluid is found between two layers of the meninges, in a space called the _____. a) subdural space b) subarachnoid space c) subpial space d) epidural space
b
278) The denticular ligaments are an extension of the dura mater, which attach it to the arachnoid mater. a) True b) False
b
281) The lumbar enlargement is a bulge in the spinal cord at L1-L5. a) True b) False
b
284) The inferior extension of the pia mater that anchors the spinal cord to the coccyx is called the _____. a) cauda equina b) filum terminale c) denticulate ligament d) conus medullaris e) none of the above
b
285) The white commissure connects the right and left halves of gray matter in the spinal cord. a) True b) False
b
288) Which of the following contain cell bodies of interneurons? a) posterior (dorsal) root ganglia b) posterior (dorsal) gray horns c) anterior (ventral) gray horns d) all of these choices
b
289) The white matter of the spinal cord: a) is subdivided into regions called horns. b) contains ascending (sensory) and descending (motor) tracts. c) is surrounded by gray matter. d) all of these choices
b
291) The anterior gray horn contains both somatic and autonomic motor neuron cell bodies. a) True b) False
b
298) A nerve is a structure that may contain: 1. axons 2. blood vessels 3. neuron cell bodies 4. connective tissue 5. myelin 6. oligodendrocytes a) 1, 4, 5 b) 1, 2, 4, 5 c) 1, 3, 5, 6 d) 2, 3, 4 e) 1, 2, 3
b
299) Which connective tissue covers nerves? a) Perineurium b) Epineurium c) Epimysium d) Endoneurium
b
300) Which connective tissue covers the fascicles? a) Perimysium b) Perineurium c) Epineurium d) Endoneurium
b
307) Which spinal nerve ramus has branches that serve the deep muscles and skin of the back? a) Anterior (ventral) rami b) Posterior (dorsal) rami c) Rami communicantes
b
314) The _____ plexus serves the skin and muscles of the head, neck, and superior part of the shoulders and chest. a) lumbar b) cervical c) brachial d) thoracic
b
315) Which of the following is NOT a correct description of the location of the brachial plexus? a) extends inferiorly and laterally on either side of the last few cervical and first thoracic vertebrae b) on the neck alongside the first four cervical vertebrae c) passes above the first rib posterior to the clavicle d) enters the axilla
b
318) From which plexus does the long thoracic nerve arise? a) thoracic b) brachial c) cervical d) lumbar e) sacral
b
322) From which plexus does the axillary nerve arise? a) sacral b) brachial c) cervical d) lumbar e) thoracic
b
326) From which plexus does the pudendal nerve arise? a) brachial b) sacral c) cervical d) lumbar e) thoracic
b
327) Which of the following is FALSE regarding the sciatic nerve? It: a) sends branches to the hamstring muscles. b) arises from the lumbar plexus. c) splits at about the level of the knee into tibial and common fibular nerves. d) is the largest nerve in the body.
b
330) Select the structure(s) served by the axillary nerve. a) flexors of the wrist b) deltoid muscle c) extensors of the wrist d) biceps brachii e) diaphragm
b
240) A major difference between neurons (nerve cells) and neuroglia (glia) is: a) neuroglia are found only in the central nervous system. b) neurons are generally smaller than neuroglia. c) mature neurons do not normally divide; neuroglia do. d) neurons are more numerous than neuroglia.
c
244) Which of the following are types of glia in the PNS? a) Oligodendrocytes and satellite cells b) Microglia and Schwann cells c) Satellite cells and Schwann cells d) Oligodendrocytes and microglia
c
246) The following are all functions of astrocytes EXCEPT: a) they help maintain the blood-brain barrier. b) they help maintain proper K+ balance. c) they synthesize neurotransmitters. d) they participate in brain development.
c
249) Select the best description of astrocytes: a) surround neurons in peripheral nervous system ganglia b) form myelin sheaths in the central nervous system c) help maintain the blood-brain barrier d) form myelin sheaths in the peripheral nervous system
c
254) Which neuroglia would be most responsible for helping to prevent pathogens and toxins from entering the brain from the blood? a) ependymal cells b) Schwann cells (neurolemmocytes) c) astrocytes d) oligodendrocytes
c
265)When compared to unmyelinated axons, myelinated axons: are electrically insulated are gray in color 275) have a faster speed of nerve impulse conduction are more numerous a) 1,2,3,4 b) 1,2,4only c) 1,3,4only d) 2,3,4only
c
266)White matter includes: a) ganglia b) a thin outer layer of most of the brain c) tracts in the spinal cord d) nuclei in the brain e) AandB
c
274) What is the best description of the arachnoid mater? a) meninx closest to the bone of the vertebral column b) between subarachnoid space and pia mater c) consists of collagen and elastic fiber network; has no blood vessels d) contains a protective cushion of fat and connective tissue e) contains blood vessels that supply oxygen and nutrients to the spinal cord
c
275)What is the best description of the subarachnoid space? a) contains interstitial fluid b) contains a protective cushion of fat and connective tissue c) between arachnoid mater and pia mater d) between dura mater and the wall of vertebral canal e) between dura mater and arachnoid mater
c
277) What is the best description of the pia mater? a) contains a protective cushion of fat and connective tissue b) most superficial meninx c) contains blood vessels that supply oxygen and nutrients to the spinal cord d) thick strong layer composed of dense, irregular connective tissue e) consists of collagen and elastic fiber network; has no blood vessels
c
282) The conus medullaris is: a) the junction between the medulla and the spinal cord. b) the attachment of a spinal nerve to the spinal cord. c) the tapering end of the spinal cord inferior to the lumbar enlargement. d) the inner portion of the spinal cord, seen in cross section.
c
283) The roots of which spinal nerves make up the cauda equina? 1. Thoracic 2. Lumbar 3. Sacral 4. Coccygeal a) 1, 2, 3, 4 b) 3 & 4 c) 2, 3, 4 d) 4 e) 2 & 3
c
292) Lateral gray horns are present in ALL segments of the _____ region of the spinal cord. a) lumbar b) cervical c) thoracic d) all of these choices
c
296) There are _____ pairs of spinal nerves, consisting of the following groups: _____ pairs of cervical, _____ pairs of thoracic, _____ pairs of lumbar, _____ pairs of sacral, and _____ pair of coccygeal spinal nerves. a) 31, 7, 12, 5, 5, 1 b) 41, 8, 13, 6, 6, 2 c) 31, 8, 12, 5, 5, 1 d) 24, 9, 10, 4, 5, 3
c
301) Which connective tissue covers unmyelinated or myelinated axons? a) Endomysium b) Perineurium c) Endoneurium d) Epineurium
c
302) Which of the following contains sensory information ONLY? a) anterior (ventral) root b) anterior (ventral) ramus c) posterior (dorsal) root d) posterior (dorsal) ramus
c
312) The main plexuses formed by the anterior (ventral) rami of spinal nerves are: a) thoracic, lumbar, sacral, and coccygeal b) cervical, lumbar, sacral, and coccygeal. c) cervical, brachial, lumbar, and sacral. d) cervical, lumbar, sacral, and inguinal.
c
313) A ________ corresponds to the area of the skin that provides sensory input to the CNS via one pair of spinal nerves. a) sensory tract b) plexus c) dermatome d) cutaneous field e) none of the above
c
316) Which of the following is NOT a correct description of the location of the lumbar plexus? a) lateral to the first four lumbar vertebrae b) between the two heads of the psoas major muscle c) posterior to the quadratus lumborum muscle d) None of these choices
c
320) From which plexus does the phrenic nerve arise? a) brachial b) sacral c) cervical d) lumbar e) thoracic
c
328) Select the structure(s) served by the phrenic nerve. a)quadriceps femoris muscle b)adductor muscles of thigh c)diaphragm d)flexors of the wrist e)skin of superior portion of the chest and shoulder
c
331) Select the structure(s) served by the radial nerve. a) skin of superior portion of the chest and shoulder b) deltoid muscle c) triceps brachii d) flexors of the wrist e) diaphragm
c
334) Select the muscle(s) served by the obturator nerve. a) gastrocnemius and soleus muscles b) anterior muscles of thigh (quadriceps and sartorius) c) adductor muscles of thigh d) gluteus maximus e) tibialis anterior and fibularis (peroneal) muscles
c
336) Select the muscle(s) served by the inferior gluteal nerve. a) anterior muscles of thigh (quadriceps and sartorius) b) adductor muscles of thigh c) gluteus maximus d) gastrocnemius and soleus muscles e) tibialis anterior and fibularis (peroneal) muscles
c
337) Select the muscle(s) served by the common fibular nerve. a) anterior muscles of thigh (quadriceps and sartorius) b) adductor muscles of thigh c) tibialis anterior and fibularis (peroneal) muscles d) gluteus maximus e) gastrocnemius and soleus muscles
c
340) The two main routes for sensory information traveling up the spinal cord to the brain are _____ tracts and _____ columns. a) direct, indirect b) reticulospinal, vestibulospinal c) spinothalamic, posterior d) corticospinal, corticobulbar e) none of the above
c
342) Motor impulses that help maintain muscle tone and posture are conveyed from the brain through the spinal cord by the: a) direct pathways. b) posterior columns. c) indirect pathways. d) spinothalamic tracts.
c
220) _____ (or sensory) impulses travel from the _____ to the _____. a) Efferent, central nervous system, receptors b) Efferent, receptors, central nervous system c) Afferent, central nervous system, receptors d) Afferent, receptors, central nervous system
d
223) Which of the following convey information from the central nervous system (CNS) to skeletal muscles only? a) sympathetic motor neurons b) parasympathetic motor neurons c) somatic sensory neurons d) somatic motor neurons e) afferent motor neurons
d
255) Select the best description of the Schwann cells (neurolemmocytes): a) surround cell bodies in peripheral nervous system ganglia b) form myelin sheaths in the central nervous system c) help maintain the blood-brain barrier d) form myelin sheaths in the peripheral nervous system
d
264)Which type(s) of neuroglia is/are associated with myelin sheaths? Select all that apply. a) Schwann cells b) oligodendrocytes c) satellite cells d) AandB
d
290) The gray matter of the spinal cord: a) contains neuronal cell bodies. b) is subdivided into regions called horns. c) is surrounded by white matter. d) all of these choices
d
321) From which plexus does the ulnar nerve arise? a) cervical b) lumbar c) sacral d) brachial e) thoracic
d
324) From which plexus does the iliohypogastric nerve arise? a) sacral b) brachial c) cervical d) lumbar e) thoracic
d
332) Select the structure(s) served by the median nerve. a) skin of superior portion of the chest and shoulder b) quadriceps femoris muscle c) extensors of the wrist d) flexors of the wrist e) diaphragm
d
341) The senses of pain and temperature are conveyed to the brain by: a) direct tracts. b) indirect tracts. c) posterior columns. d) lateral spinothalamic tracts.
d
218) The peripheral nervous system does NOT include a) the effectors (e.g., muscles and glands). b) cranial nerves and their branches. c) spinal nerves and their branches. d) ganglia e) none of the above
e
221) Which nerve fibers carry impulses from sensory receptors in the hand to the CNS when you touch a hot stove? (1) Afferent (2) Efferent (3) Peripheral (a) 1 (b) 2 (c) 3 (d) 2 & 3 (e) 1 & 3
e
222) The somatic nervous system (SNS) a) conveys information to the CNS from the skin, skeletal muscles, joints, and special sensory receptors. b) conveys information from the CNS that causes contraction of all types of muscles. c) consists of somatic sensory neurons and somatic motor neurons. d) A and B e) A and C
e
224) The autonomic nervous system a) conveys information to the CNS, via autonomic (visceral) sensory neurons, about events in visceral organs. b) conveys information from the CNS, via autonomic motor neurons, to smooth muscle, cardiac muscles, and glands. c) has two main divisions, the sympathetic division and the parasympathetic division. d) has a third division, according to Tortora, the enteric nervous system. e) all of the above
e
225) Neurons a) are variable in size, with some neurons being the longest cells in the body. b) are electrically excitable (can produce action potentials (nerve impulses)). c) display great diversity in size and shape. d) A and B e) A, B, and C
e
233) A synapse is a functional junction between: a) a neuron and a glandular cell. b) two neurons. c) a neuron and a muscle cell. d) A and B e) A, B, and C
e
241) Which of the following is/are accurate? Select all that apply. a) neuroglia are more numerous than neurons b) neuroglia are smaller than neurons c) neuroglia generate nerve impulses and neurons do not d) neuroglia can fill in spaces formerly occupied by neurons e) A, B and D
e
242) Which neuroglia are located exclusively in the PNS? a) Schwann cells b) satellite cells c) microglia d) astrocytes e) A and B
e
258) Select all of the neuroglial types of the PNS. a) Schwann cells b) satellite cells c) ependymal cells d) microglial cells e) A and B
e
259) Which neuroglia surround neuron axons? Select all that apply. a) oligodendrocytes b) Schwann cells c) ependymal cells d) microglial cells e) A and B
e
263)Both types of neuroglia that produce and maintain a myelin sheath in nervous tissue are abundant in adults. Which of the following accurately describes how they differ? Select all that apply. a) one oligodendrocyte can associate with multiple axons whereas multiple Schwann cells associate with a single axon b) oligodendrocytes are only in CNS whereas Schwann cells are only in PNS. c) oligodendrocytes are found exclusively in gray matter whereas Schwann cells are found exclusively in white matter d) oligodendrocytes produce cerebrospinal fluid and myelin whereas Schwann cells only produce myelin e) AandB
e
270) The spinal cord a) is the "highway" for ascending sensory signals and descending motor impulses. b) extends the entire length of the vertebral column. c) contains neural circuits for processing reflexes (quick, automatic responses to stimuli). d) AandB e) AandC
e
295) In what region of the spinal cord is there the smallest amount of gray matter relative to white matter? a) Cervical b) Coccygeal c) Sacral d) Lumbar e) Thoracic
e
297) Which of the following statements is FALSE for spinal nerves? a) The two largest branches of a spinal nerve are the anterior (dorsal) ramus and the posterior (ventral) ramus. b) Every pair of spinal nerves exits through the intervertebral foramina above the vertebra that has the same name and number as the nerves. c) The outer covering of a spinal nerve is the epineurium. d) All spinal nerves are mixed nerves. e) A and B
e
317) The plexus located largely posterior to the sacrum that supplies the buttocks, perineum, and lower limbs is the a) cervical plexus. b) coccygeal plexus. c) thoracic plexus. d) lumbar plexus. e) sacral plexus.
e
325) From which plexus does the superior gluteal nerve arise? a) thoracic b) brachial c) cervical d) lumbar e) sacral
e
329)Select the structure(s) served by the supraclavicular nerve. a) diaphragm b) quadriceps femoris muscle c) extensors of the wrist d) flexors of the wrist e) skin of superior portion of the chest and shoulder
e
335) Select the muscle(s) served by the tibial nerve. a) tibialis anterior and fibularis (peroneal) muscles b) anterior muscles of thigh (quadriceps and sartorius) c) adductor muscles of thigh d) gluteus maximus e) gastrocnemius and soleus muscles
e