Cranial nerves functions Flashcards
1
Q
What is the function of the olfactory nerve?
A
Smell
2
Q
What is the function of the optic nerve?
A
Vision
3
Q
What is the function of the oculomotor nerve?
A
- Extraoculur movement (like blinking).
- And all movement of the eye except the ones that trochlear and abducens move.
4
Q
Trochlear
A
- Depresses the eye
- Intorsion
5
Q
Trigeminal
A
- Facial sensations
- Mastication
- Tensor tympani
- Tensor Veli Palatini (Soft palate)
6
Q
Abducens
A
- Abduction (moves distally or away from the midline)
7
Q
Facial
A
- Facial expression
- Stapedius (prevents excessive sounds)
- Lacrimal and nasal glands.
- 2/3rd anterior tongue taste.
8
Q
Vestibulocochlear
A
Vestibular - Balance
Cochlear - Hearing
So Hearing and Balance
9
Q
Glossopharyngeal
A
- 1/3rd posterior tongue
- Taste
- pharynx sensation and movement upwards
10
Q
Vagus
A
- Majority of Parasympathetic nerve (90%) [Heart Rate + Digestion etc.]
11
Q
Accessory
A
- Innervates SCN and trapezius allowing flexion of neck.
- Contralateral head rotation.
- Elavates and retracts the scapula.
12
Q
Hypoglossal
A
- Movement of tongue - elevates, depresses, and general change of shape, protraction and retraction.
