Anatomy: Spinal nerves

1. 1The anterior spinal roots are enlarged where the cell bodies of primary sensory neurons are located

   1. AVerdadero
   2. BFalso
2. 2The enlargement of the posterior or dorsal spinal root is called the spinal ganglion

   1. AVerdadero
   2. BFalso
3. 3Spinal nerves immediately form rami after emerging from the transverse foramen

   1. AVerdadero
   2. BFalso
4. 4The dorsal rami

   1. AProvide sensory information from a specific region on the back
   2. BProvide motor innervation to a specific region of the back
   3. CSupply the ventrolateral body surface
   4. DInnervates the meninges, vertebrae, and vertebral ligaments
   5. EConnects to the sympathetic trunk ganglion
5. 5Ventral rami

   1. ASupply the ventrolateral body surface
   2. BSupply the body wall and limbs
   3. CInnervate the meninges, vertebrae, and vertebral ligaments
   4. DConnect to the sympathetic trunk ganglion
   5. EMotor innervates a specific region of the back
6. 6The meningeal rami

   1. AOriginates at the common trunk
   2. BRe-enters the spinal column to innervate the meninges, vertebrae, and vertebral ligaments
   3. CHas a myelinated white ramus
   4. DHas an unmyelinated grey ramus
   5. EConnects to the sympathetic trunk ganglion
7. 7The rami communicantes

   1. AConnect to a sympathetic trunk ganglion
   2. BHas an unmyelinated white ramus
   3. CHas a myelinated grey ramus
   4. DProvides sensory innervation from specific regions of the back
   5. ESupplies the ventrolateral body and limbs
8. 8The white ramus of the rami communicates are preganglionic sympathetic nerve fibers and are myelinated

   1. AVerdadero
   2. BFalso
9. 9The grey ramus of the rami communicantes are unmyelinated postganglionic sympathetic nerve fibers

   1. AVerdadero
   2. BFalso
10. 10Except in T2-T12, the dorsal rami of adjacent spinal nerves combine then split to form plexuses

    1. AVerdadero
    2. BFalso

11. 11The cervical plexus

    1. Ais composed of muscular and cutaneous branches from the ventral rami of spinal nerves C1-C4, and fibers from C5
    2. BIs composed of muscular and cutaneous branches from the dorsal rami of spinal nerves C1-C4 and fibers from C5
    3. CIs composed of root contributions from C5-T1
    4. DIs composed of roots and divisions from L1-L4
    5. EIs composed of roots from L4-S4
12. 12the Greater auricular branch of the cervical plexus

    1. AInnervates the skin in front of, above, and below the ear
    2. BInnervates the skin of the scalp above and behind the ear
    3. CInnervates the extrinsic laryngeal muscles
    4. DInnervates the skin of the upper chest and shoulder
    5. EInnervates the skin of the anterior aspect of the neck
13. 13The skin of the scalp above and behind the ear

    1. AIs innervated by the lesser occipital branch of the cervical plexus
    2. BIs innervated by the greater auricular branch of the cervical plexus
    3. CIs innervated by the lesser occipital branch of the brachial plexus
    4. DIs innervated by the ansa cervicalis of the brachial plexus
14. 14The ansa cervicalis

    1. AIs part of the cervical plexus
    2. BInnervates the extrinsic laryngeal muscles
    3. CIs part of the brachial plexus
    4. DIs part of the lumbar plexus
    5. EInnervates the skin of the upper chest and shoulder
15. 15The skin of the upper portion of the neck and shoulder are innervated by

    1. AThe supraclavicular branch of the cervical plexus
    2. BThe transverse cervical branch of the cervical plexus
    3. CThe phrenic nerve
    4. DThe supraclavicular branch of the lumbar plexus
    5. EThe transverse cervical branch of the lumbar plexus
16. 16The transverse cervical branch of the cervical plexus innervates

    1. AThe skin of the anterior aspect of the neck
    2. BThe skin in front of, above, and below the ear
    3. CThe skin of the scalp above and behind the ear
    4. DThe deep muscles of the neck
    5. EThe diaphragm
17. 17The phrenic nerve

    1. AIs part of the cervical plexus
    2. BOriginates from C3-C5
    3. CInnervates the diaphragm
    4. DIs part of the vagus nerve
    5. EInnervates the deep muscles of the neck
18. 18The prevertebral branch of the cervical plexus innervates

    1. AThe deep muscles of the neck including the levator scapulae
    2. BThe skin in front of, above, and behind the ear
    3. CThe skin of the scalp above and behind the ear
    4. DThe diaphragm
    5. EThe upper portion of the chest and shoulder
19. 19The brachial plexus

    1. AIs the largest and most complex plexus
    2. BInnervates the upper extremity of each side
    3. CInnervates some shoulder and neck muscles
    4. DContains several dorsal rami
    5. EContains no dorsal rami
20. 20The brachial plexus is composed of

    1. ARoot contributions from C5-T1
    2. BVentral rami of spinal nerves C1-C4
    3. CRoots from L1-L4
    4. DAnterior and posterior divisions of L4-S4
21. 21The roots of the cervical plexus form three trunks, the superior, middle, and inferior

    1. AVerdadero
    2. BFalso
22. 22The correct order for the organization of the brachial plexus is as follows:

    1. ARoots > superior/middle/inferior trunk > anterior/posterior division > posterior/medial/lateral cords > 5 nerve branches
    2. BSuperior/middle/inferior trunk > anterior/posterior division > 5 nerve branches > posterior/medial/lateral cords > roots
    3. CRoots > anterior/posterior division > superior/middle/inferior trunk > Posterior/medial/lateral cords > 5 nerve branches
    4. DRoots > posterior / medial/lateral cords > superior/middle/inferior trunk > anterior/posterior division > 5 nerve branches
23. 23The deltoid, teres minor, and skin of the shoulder are innervated by the

    1. AAxillary brachial plexus nerve
    2. BRadial brachial plexus nerve
    3. CMusculocutaneous brachial plexus nerve
    4. DMedian brachial plexus nerve
    5. EUlnar brachial plexus nerve
24. 24The radial nerve of the brachial plexus innervates

    1. ABEST: Brachioradialis, extensors, supinator, triceps
    2. BBBC: Biceps brachii, brachialis, coracobrachialis
    3. CSkin over the posterolateral surface of the forearm
    4. DFlexor muscles of the arm
    5. ESkin over lateral surface of the forearm
25. 25The BBC (biceps brachii, brachialis, and coracobrachilis), as well as the flexors and skin of the lateral surface of the forearm are innervated by the

    1. AAxillary brachial plexus nerve
    2. BRadial nerve of the brachial plexus
    3. CMusculocutaneous nerve of the brachial plexus
    4. DMedian nerve of the brachial plexus
    5. EUlnar nerve of the brachial plexus
26. 26The median nerve of the brachial plexus innervates the

    1. APronator muscles
    2. BDigital flexors
    3. CSkin over the lateral palm
    4. DSkin over the lateral surface of forearm
    5. EFlexor carpi ulnaris
27. 27The ulnar nerve of the brachial plexus innervates the

    1. AFlexor carpi ulnaris
    2. BSkin over lateral surface of forearm
    3. CFlexor muscles of forearm
    4. DDeltoid and teres minor
    5. ESkin of shoulder
28. 28The lumbar plexus

    1. AInnervates the lower abdomen
    2. BInnervates the anterior and medial portions of the lower extremities
    3. CIs composed of roots from L1-L4
    4. DInnervates the lower back, pelvis, and perineum
    5. EIs composed of roots from L4-S4
29. 29The femoral nerve

    1. AIs a branch of the lumbar plexus
    2. BInnervates the anterior muscles of the thigh, the skin over the anterolateral thigh, and the medial leg and foot
    3. CIs a branch of the sacral plexus
    4. DIs a branch of the cervical plexus
    5. EInnervates the adductor muscles of the thigh, skin over the medial thigh
30. 30The obturator nerve

    1. AIs part of the lumbar plexus
    2. BInnervates the adductor muscles of the thigh, and the skin over the medial thigh
    3. CIs part of the sacral plexus
    4. DIs part of the Cervical plexus
    5. EInnervates the anterior muscles of the thigh and the skin over the anterolateral thigh and ledial leg and foot
31. 31The sacral plexus

    1. AInnervates the lower back, pelvis, and perineum
    2. BInnervates the posterior surface of the thigh and leg
    3. CInnervates the plantar and dorsal surfaces of the foot
    4. DIs composed of nerves from L4-S4
    5. EIs composed of nerves from L1-L4
32. 32The superior gluteal branch is

    1. APart of the sacral plexus
    2. BInnervates the abductor muscles of the thigh
    3. CInnervates the extensor muscle of the hip
    4. DInnervates the semimembranosus and semitendinosus
    5. EPart of the lumbar plexus
33. 33the inferior gluteal branch is

    1. APart of the sacral plexus
    2. BInnervates the extensor muscles of the hip
    3. CPart of the lumbar plexus
    4. DInnervates the abductor muscles of the thigh
    5. EInnervates the flexors of the knee and plantar flexors of the ankle
34. 34The sciatic nerve

    1. AInnervates the semimembranosus and semitendinosus
    2. BInnervates the biceps femoris
    3. CIs part of the sacral plexus
    4. DInnervates the skin and muscles of the perineum
    5. EInnervates the abductor muscles of the thigh
35. 35The inferior gluteal nerve splits into the tibial and common peroneal nerves

    1. AVerdadero
    2. BFalso
36. 36The tibial nerve

    1. AInnervates the flexors of the knee and plantar flexors of the ankle
    2. BInnervates the skin over the posterior surface of the leg and plantar surface of the foot
    3. CBranches from the sciatic nerve
    4. DIs part of the lumbar plexus
    5. EInnervates the peroneal muscles, toe extensors and skin over anterior surface of leg
37. 37The fibular nerve

    1. AInnervate the peroneal muscles, toes extensors and skin over anterior surface of leg
    2. BInnervate the dorsal surface of the foot
    3. CSplits off from the sciatic nerve
    4. DInnervates the skin and muscles of the perineum
    5. EInnervates the adductor muscles of the thigh
38. 38The pudendal nerve

    1. AInnervates the skin and muscles of the perineum and external genitalia
    2. BIs a branch of the sacral plexus
    3. CInnervates the adductor muscles of the thigh
    4. DInnervates the extensor muscle of the hip
    5. EIs a branch of the lumbar plexus

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Test sobre Anatomy: Spinal nerves, creado por lknelin el 30/03/2015.

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