338 Chapter Fifteen The Brain and Cranial Nerves Exerclse 15.9 Testing Specific

Question

338 Chapter Fifteen The Brain and Cranial Nerves Exerclse 15.9 Testing Specific Punctions ef the Cranial Nerves nerve essaciated with that disorder isted in column B Some anewers may be used mare than once. Column A bindness 2. comeal neflex is absent 2 answers) 3 dmiculity turning the eye Inferior and lateral 4 inablity to lateraly rotate the aye 5. inabity to maintain balance and equiirium 6, inability to pucker the ips 7, inability to smell 8. inability to taste bitter (sensed by posterior teste buds of the tongue pupillary reflexes are absent (2 answers) 10 soft palate droops on one side (2 answers) J trochiear t tongue deviates to one side when It is stuck out of the mouth 2212. weakness in elevation of the scapula 14. Three of the 12 cranial nerves carry somatic motor fibers to extrinsic muscles of the eye. Complete the table by listing the nerves that carry somatic motor foers to the extrinsic eye muscles, and then name the muscleis) innervated by each nerve 15. Several cranial nerves innervate structures then list the functions af each nerve. C of the tongue. Complete the table by listing the nerves that innervate structures of the tongue, and Cranial Nerve 16. Four of the 12 cranial nerves carry parasympathetic motor output Complete the table by listing the nerves that carry parasympathetic motor output, and then give the parasympathetic function(s) of each nerve. Cranial Nerve Parasympatbetic Motor Function(s) of the Nerve

Explanation / Answer

Answers:

13)

1 - h

2 - c , i

3 - j

4 - a

5 - l

6 - c

7 - g

8 - d

9 - f , h

10 - d , k

11 - e

12 - b

14)

The extrinsic muscles of the eye are supplied by:

15) Nerve supply of the tongue muscles

16) Parasympathetic innervation of cranial nerves

Cranial nerve Muscles innervated by the nerve Oculomotor Superior rectus, inferior rectus, medial rectus, Inferior oblique and levator palpebrae superioris Abducent Lateral rectus Trochlear Superior oblique

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