Brittany Zarse Elizabeth Yeager Nathan Webb

 A) Tongue and pharynx movement  B) Hearing and Balance  C) Sense of Smell  B) Visual information

 A) Tongue and pharynx movement  B) Hearing and Balance (CN 8 Vestibulocochlea)  C) Sense of Smell (CN 1 Olfactory)  B) Visual information (CN 2 Optic)

 A. Midbrain  B. Pons  C. Medulla  D. Cerebrum

 C) Medulla

 A) Sensory information to 1/3 of the posterior tongue  B) General sensory information from the tonsils.  C) General sensory information from the soft palate and pharynx.  D) All of these

 D) ALL OF THESE  A) Sensory information to 1/3 of the posterior tongue  B) General sensory information from the tonsils.  C) General sensory information from the soft palate and pharynx.

 A) CN X  B) CN IX  C) CN XI  D) CN V

 B) Cranial nerve IX.  Supplies parasympathetic fibers to the parotid gland  Which is the largest of the salivary glands found in the subcutaneous tissue of the face which empties its secretion within the buccal cavity.

A) Partial paresis (weakening) of the unilateral stylopharyngeal muscle. B) Impaired cutaneous sensation from the posterior tongue. C) Poor control of parotid gland D) All of these E) None of these

 D) ALL OF THESE A) Partial paresis (weakening) of the unilateral stylopharyngeal muscle.  Affects elevation of pharynx during swallowing B Impaired cutaneous sensation from the posterior tongue.  Loss of gag reflex C Poor control of parotid gland  Excessive saliva secretion

 A) X  B) V  C) VIII  D) VII

 A) CN X supplies general sensory information from the external ear and parts of the external surface of the tympanic membrane. BONUS: What kind of information?

 SENSORY INFORMATION for touch, temperature and pressure

 A) Breathy Voice  B) hoarseness and diplophonia  C) difficulty in swallowing  D) All of these

 D) ALL OF THESE  A) Breathy Voice and B) hoarseness and diplophonia are caused by paralysis of the intrinsic muscles of the larynx on the affected side.  C) difficulty in swallowing is cause by the inability to elevate the soft palate on the affected side (due to paralysis of the levator palatini muscle)

 A) V  B) VII  C) X  D) XI

 C) CN X

A) I B) IX C) X D) XII

 C) X vagus nerve A) I, damage could result in Anosmia/hyposmia – Reduction/loss of the ability to smell Hyperosmia – Abnormally acute sensation of smell  B) IX, damage could result in loss of gag reflex, elevation of pharynx, and excessive saliva  D) XII, damage could result in paralysis of tongue

 Motor nerve  Head movement control  Tilting of the head forward and rotating to opposite side= sternocleidomastoid muscle contraction  Tilting of head back and to the side= trapezius muscle contraction  Clinical Testing –  Trapezius- ask to shrug shoulders while giving resistance  Sternocleidomastoid= ask to turn head while giving resistance

 Motor Nerve  Innervates all of the intrinsic and 3 of the 4 major extrinsic muscles of the tongue  The other extrinsic tongue muscles is innervated by what?

 Clinical testing –  Check for paralysis by asking to stick out their tongue (will point towards paralyzed side during unilateral paralysis)  strength of the tongue measured by pushing a finger against their cheek and seeing how strongly they can push back  Also look for signs of fasciculation (Involuntary contractions and twitching of muscle) and muscular atrophy.

 Damages to the following cranial nerves result in:  CN VII, Facial:  CN VIII, Auditory:  CN IX, Glosspharyngeal:  CN X, Vagus:  CN XI, Accessory: head movement problems  CN XII, Hypoglossal: tongue paralysis, atrophy, or fasciculation; dysarthria or chewing difficulties

 1.  2.  3.  4.  5.  6.  7.  8.  9.

 10.  11.  12.  13.  14.  15.  16.  17.  18.

 19. Is the spinal accessory nerve a motor nerve, sensory nerve, or both?  20. You see a client who has difficulties with head movement. What cranial nerve could be affected?  21. The hypoglossal nerve innervates all of the extrinsic and 3 of the 4 major intrinsic muscles of the tongue. T or F?  22. During unilateral tongue paralysis, what side of the mouth does the tongue point towards?  23. The ______ muscle is in charge of the tilting of the head back and to the side.  24. What is fasciculation?  25. Tongue paralysis can be a sign of damage to what cranial nerve?