topic 19: only the cranial nerves part

Question 1

the 12 pairs

Answer 1

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1.olfactory
2.optic
3.occulomotor
4.Trochlear
5.trigeminal (ophtalmic,maxillary & mandibular)
6.abducens
7.facial
8.vestibulocochlear
9.glossopharyngeal
10.vagus
11.accessory
12.hypoglossal

Question 2

motor or sensory or both

Answer 2

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1.Sensory
2.sensory
3.motor
4.motor
5.both
6.motor
7.both
8.sensory
9.both
10.both
11.motor
12.motor

Question 3

function

Answer 3

1.Olfaction-sense of smell
2.Vision
3.Eye momevent,pupil constriction & eyelid elevation
4.Eye movement
5.Sensation of face & chewing movements
6.abducts eye
7.facial expression, taste of ant 2/3 of tongue, salivary & tear glands
8.hearing & balance
9.taste from post 1/3 of tongue, swallowing, salivation & monitoring carotid body & sinus
10.autonomic functions of heart, lungs, and gi tract, sensation of ear & throat
11.shoulder shrugging & head roation
12.tongue movement

Question 4

what exactly it inervates

Answer 4

1.Olfacory epithelium in nasal cavity
2.Retina of eye
3.Most extraocular muscles, ciliary muscles, and sphincter pupillae
4.Superior oblique muscle of the eye
5.a.Ophthalmic (V1): Forehead, scalp, upper eyelid
b.Maxillary (V2): Cheeks, nose, upper lip, upper teeth, palate
c.Mandibular (V3): Lower jaw, lower lip, tongue muscles for chewing
6. Lateral rectus muscle of the eye
7. Muscles of facial expression, lacrimal gland, submandibular and sublingual salivary glands, taste sensation from anterior two-thirds of the tongue
8. Cochlea (hearing) and vestibular apparatus (balance)
9.Stylopharyngeus muscle, posterior one-third of the tongue, pharynx, parotid gland, carotid body and sinus
10.Muscles of the larynx and pharynx, heart, lungs, digestive organs, external ear
11.Sternocleidomastoid and trapezius muscles
12.Intrinsic and extrinsic muscles of the tongue