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Flashcards in Exam Block 2 Deck (24)
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1

I

Olfactory

2

II

Optic

3

III

Oculomotor

4

IV

Trochlear

5

V

Trigeminal

6

VI

Abducens

7

VII

Facial

8

VIII

Auditory (Vestibulocochlear)

9

IX

Glossopharyngeal

10

X

Vagus

11

XI

Spinal Accessory

12

XII

Hypoglossal

13

Olfactory

Sensory

Olfactory information (sense of smell) from nasal epithelium to Brain

14

Optic

Sensory

Visual information sent from retina of eye to the Brain

15

Oculomotor

Motor

Contraction of the majority of Extrinsic Eye Muscles
(rectus and obliques) and eyelid (levator Palpibrae) for eye movement and blinking (except lateral rectus, superior Oblique) Controls Iris Contraction (Pupil Diameter) and Accommodation (lens shape) for focusing.

16

Trochlear

Motor

Contraction of the Superior Oblique extrinsic eye muscle; will coordinate with Nerve III and VI signals

17

Trigeminal

Mixed (Both)

"The Dentist's Nerve" ; 3 branches
Opthalmic (eye), Maxillary (upper face, palate), Mandibular (Lower Jaw)

Sensory
General Sensation for head/mouth
Temperature (hot/cold), Pressure (touch), Pain signals from face, mouth

Motor
Motor signals to muscles of mastication (Temporalis, Masseter), and Ear

18

Abducens

Motor

Contraction of the Lateral Rectus extrinsic eye muscle will coordinate with Nerve III and VI signals

19

Facial

Mixed (Both)

Sensory
Taste sensations from taste buds on anterior 2/3 tongue, Proprioception from facial muscles

Motor
Contraction of muscles of facial expression
(frontalis, zygomatic, orbicularis oculi and oris)

20

Auditory (Vestibulocochlear)

Sensory

Hearing signals from cochlea to brain
Balance, equilibrium signals from vestibule, semicircular canals to brain

21

Glossopharnygeal

Mixed (both)

Sensory
Taste sensations from taste buds on posterior 2/3 Tongue
blood pressure, pCO2, and pO2 monitoring to medulla

Motor
Contraction of muscles for swallowing (palatini, pharyngeus, hyoid)
activates salivary secretions

22

Vagus

Mixed (Both)

Sensory
Cardiac rate monitoring to medulla
Blood pressure, pCO2, and pO2 monitoring to medulla
taste from throat, regulates GI function

Motor
Contraction of muscles for swallowing, coughing, speech
inhibits cardiac rate
stimulates GI function, movement, and secretion

23

Spinal Accessory

Motor
Contraction of Sternocleidomastoid, Trapezius (head and shoulders)

24

Hypoglossal

Motor
Contraction of tongue for swallowing and speaking