Lab 11 - Nervous System pt. 2

Question 1

Does the olfactory nerve carry sensory or motor fibers?

Answer 1

Sensory

Question 2

What is the cranial passage for the olfactory nerve?

Answer 2

Through the cribriform plate of the ethmoid bone

Question 3

Does the optic nerve carry sensory or motor fibers?

Answer 3

Sensory

Question 4

What is the cranial passage for the optic nerve?

Answer 4

Through the optic canal

Question 5

What are the four cranial nerves that are concerned exclusively with the eyes?

Answer 5

1. Optic
2. Oculomotor
3. Trochlear
4. Abducens

Question 6

Does the oculomotor nerve carry sensory or motor fibers?

Answer 6

Motor

Question 7

What is the cranial passage for the oculomotor nerve?

Answer 7

Through the supraorbital fissure of the sphenoid bone

Question 8

What is the function of the oculomotor nerve?

Answer 8

Controls 4/6 muscles for eye movement; up, down, and medial movement as well as pupil constriction

Question 9

Does the trochlear nerve carry sensory or motor fibers?

Answer 9

Motor

Question 10

What is the cranial passage for the trochlear nerve?

Answer 10

Through the supraorbital fissure of the sphenoid bone

Question 11

What is the function of the trochlear nerve?

Answer 11

Moves gaze down; cross controlled (decussate)

Question 12

Does the trigeminal nerve carry sensory or motor fibers?

Answer 12

Both sensory and motor

Question 13

What is the cranial passage for the trigeminal nerve?

Answer 13

1. Opthalmic (V1) - Superior orbital fissure of the sphenoid bone
2. Maxillary (V2) - Foramen rotundum of the sphenoid bone
3. Mandibular (V3) - Foramen ovale of the sphenoid bone

Question 14

What is the function of the trigeminal nerve?

Answer 14

Most important sensory nerve of the face; mastication

Question 15

Does the abducens nerve carry sensory or motor fibers?

Answer 15

Motor fibers

Question 16

What is the cranial passage for the abducens nerve?

Answer 16

Through the supraorbital fissure of the sphenoid bone

Question 17

What is the function of the abducens nerve?

Answer 17

Controls lateral rectus muscle

Question 18

Does the facial nerve carry sensory or motor fibers?

Answer 18

Both sensory and motor

Question 19

What is the cranial passage for the facial nerve?

Answer 19

Stylomastoid foramen and internal acoustic meatus

Question 20

What is the function of the facial nerve?

Answer 20

Any facial action

Question 21

Does the vestibulocochlear nerve carry sensory or motor fibers?

Answer 21

Sensory

Question 22

What is the cranial passage for the vestibulocochlear nerve?

Answer 22

Internal acoustic meatus

Question 23

What is the function of the vestibulocochlear nerve?

Answer 23

Hearing and equilibrium

Question 24

Does the glossopharyngeal nerve carry sensory or motor fibers?

Answer 24

Both sensory and motor

Question 25

What is the cranial passage for the glossopharyngeal nerve?

Answer 25

Through the jugular fossa

Question 26

What is the function of the glossopharyngeal nerve?

Answer 26

Sensations of the tongue, throat, and control of food intake, taste from posterior 1/3 of tongue

Question 27

Does the vagus nerve carry sensory or motor fibers?

Answer 27

Both sensory and motor

Question 28

What is the cranial passage for for vagus nerve?

Answer 28

Through the jugular fossa

Question 29

What is the function of the vagus nerve?

Answer 29

Digestive, urinary, pulmonary, and immune system response

Question 30

Does the accessory (spinal) nerve carry sensory or motor fibers?

Answer 30

Motor fibers

Question 31

What is the cranial passage of the accessory nerve?

Answer 31

Jugular fossa

Question 32

What is the function of the accessory nerve?

Answer 32

Swallowing; control and neck and shoulder muscles

Question 33

Does the hypoglossal nerve carry sensory or motor fibers?

Answer 33

Motor

Question 34

What is the cranial passage of the hypoglossal nerve?

Answer 34

Hypoglossal canal

Question 35

What is the function of the hypoglossal nerve?

Answer 35

Control tongue movements, speech, food manipulation, and swallowing

Question 36

What is the cranial nerve associated with Bell's Palsy?

Answer 36

Facial nerve