Cranial nerves

Question 1

Nerve I

Answer 1

Olfactory: smell

Question 2

Nerve II

Answer 2

Optic = vision

Question 3

Nerve III

Answer 3

Oculomotor = eyelid and eyeball movement

Question 4

Nerve IV

Answer 4

Trochlear = innervates superior oblique

turns eye downward and laterally

Question 5

Nerve V

Answer 5

Trigeminal (sensory) = chewing face & mouth touch & pain.

Senses dust on your cornea

Question 6

Nerve VI

Answer 6

Abducens = turns eye laterally (lateral rectus eye muscle)
ab = away from, and ducere = to lead.

Question 7

Nerve VII

Answer 7

Facial = controls most facial expressions
secretion of tears & saliva taste.
(Controls orbicularis oculi to close eyelid)

Question 8

Nerve VIII

Answer 8

Vestibulocochlear (auditory) = hearing

equillibrium sensation

Question 9

Nerve IX

Answer 9

Glossopharyngeal = taste, senses carotid blood pressure.
The glossopharyngeal nerve allows perception of taste on the hindmost portion of the tongue, delivers the sensations of pain and touch from the throat and tongue, and exerts control over the muscles used during swallowing.

Question 10

Nerve X

Answer 10

Vagus = senses aortic blood pressure slows heart rate stimulates digestive organs taste

Question 11

Nerve XI

Answer 11

Spinal Accessory = controls trapezius & sternocleidomastoid controls swallowing movements

Question 12

Nerve XII

Answer 12

Hypoglossal = controls tongue movements

Question 13

Cranial Nerve III (what eye muscles innervates?)

Answer 13

Oculomotor
medial rectus muscle,
superior rectus muscle,
inferior rectus muscle,
inferior oblique muscle

Question 14

Cranial Nerve IV (what eye muscles innervates?)

Answer 14

Trochlea

Superior oblique muscle

Question 15

Cranial Nerve VI (what eye muscles innervates?)

Answer 15

Abducens

Lateral Rectus muscle

Question 16

Sensory nerves

Answer 16

Olfactory I
Optic II
Vestibulocochlear VIII

Question 17

Motor Nerves

Answer 17

Oculomotor III
Trochlear IV
Abducens VI
Accessory XI
Hypoglossal XII

Question 18

Mixed Nerves

Answer 18

Facial (taste) VII
Trigeminal V
Glossopharyngeal (taste) IX
Vagus (taste) X

Question 19

Reticular Formation (location, function)

Answer 19

+ medulla oblongata, pons, midbrain
+ Region that contains part of the system that helps maintain cerebral alertness and regulates skeletal and visceral muscle activity.
+ The reticular formation is a group of nerve fibers located inside the brainstem.

Question 20

+ It is a group of nerve fibers located inside the brainstem.
+ Region that contains part of the system that helps maintain cerebral alertness and regulates skeletal and visceral muscle activity. (location)

Answer 20

Reticular Formation (medulla oblongata, pons, midbrain)