Nervous system - Cranial Nerves Flashcards Preview

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Flashcards in Nervous system - Cranial Nerves Deck (29)
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1
Q

What are cranial nerves?

A

Nerves that originate from the brain or brainstem

2
Q

How many cranial nerves are there?

A

12

3
Q

What do cranial nerves do?

A

Relay information to and from the body to the brain

4
Q

What is this cranial nerve?

A

Olfaction (sensory) nerve (CNI)

5
Q

What is this cranial nerve?

A

Optic (sensory) nerve (CNII)

6
Q

What is this cranial nerve?

A

Oculomotor nerve (CNIII)

7
Q

What is this cranial nerve?

A

Trochlear (motor) nerve (CNIV)

8
Q

What is this cranial nerve?

A

Trigeminal (motor and sensory) nerve (CNV)

9
Q

What is this cranial nerve?

A

Adducin’s (motor) nerve (CNVI)

10
Q

What is this cranial nerve?

A

Facial (sensory and motor) nerve (CNVII)

11
Q

What is this cranial nerve?

A

Vestibulocochlear (sensory) nerve (CNVIII)

12
Q

What is this cranial nerve?

A

Glossopharyngeal (sensory) nerve (CNIX)

13
Q

What is this cranial nerve?

A

Vagus (sensory and motor) nerve (CNX)

14
Q

What is this cranial nerve?

A

Accessory (motor) nerve (CNXI)

15
Q

What is this cranial nerve?

A

Hypoglossal (motor) nerve (CNXII)

16
Q

What are the functions of CN1 (Olfactory nerve)?

A

responsible for smell

17
Q

What are the functions of CN2 (optic nerve)?

A

responsible for vision

18
Q

What are the functions of CN3 (Oculomotor nerve)?

A

responsible for eye movements

19
Q

What are the functions of CN4 (trochlear nerve)?

A

responsible for eye movements

20
Q

What are the functions of CN5 (Trigeminal nerve)?

A

responsible for Partial face and tongue sensation and biting

21
Q

What are the functions of CN6 (Abducens nerve)?

A

responsible for eye movement

22
Q

What are the functions of CN7 (Facial nerve)?

A

responsible for taste, facial expression, saliva and tears

23
Q

What are the functions of V8 (Vestibulocochlear nerve)?

A

responsible for balance and hearing

24
Q

What are the functions of CN11 (Glossopharyngeal nerve)?

A

responsible for taste, tongue and pharynx sensation, swallowing and saliva

25
Q

What are the functions of CN10 (Vagus nerve)?

A

responsible for sensation in throat, larynx and pharynx, as well as mouth movements such as swallowing, speaking, and coughing

26
Q

What are the functions of CN11 (Accessory nerve)?

A

responsible for shoulder and head movements

27
Q

What are the functions of CN12 (Hypoglossal nerve)?

A

responsible for tongue movement

28
Q

What are the symptoms of damage to the glossopharyngeal nerve?

A
  • Loss of taste from posterior 1/3 of tongue
  • Trouble swallowing
  • Decreased sensation at back of tongue, soft palate and pharynx
  • diminished gag reflex and tongue and throat pain
29
Q

What are the symptoms of damage to the vagus nerve?

A

Hoarseness of voice
Difficulty swallowing and gagging
Abnormal heart rate and GI problems