Chapter 9 - Neuro Exam Flashcards
Which of the cranial nerves are sensory?
I - Olfactory
II - Optic
VIII - Vestibularcochlear
How many cranial nerves are sensory?
3
How many cranial nerves are motor?
5
Which of the cranial nerves are motor?
III - Oculomotor IV - Trochlear VI - Abducens XI - Spinal Accessory XII - Hypoglossal
How many cranial nerves are mixed?
4
Which four cranial nerves are mixed?
V - Trigeminal
VII - Facial
IX - Glossopharyngeal
X - Vagus
What is CN I?
Olfactory
What is CN II?
Optic
What is CN III?
Oculomotor
What is CN IV?
Trochlear
What is CN V?
Trigeminal
What is CN VI?
Abducens
What is CN VII?
Facial
What is CN VIII?
Vestibularcochlear
What is CN IX?
Glossopharyngeal
What i CN X?
Vagus
What is CN XI?
Spinal Accessory
What is CN XII?
Hypoglossal
What is pronator drift associated with?
UMN involvement
What is the name for a gait indicative of pain?
Antalgic
Wide placement of the feet while walking may suggest what?
Cerebellar ataxia
If a person’s legs swings around in an arc, what type of gait might this suggest?
Hemiparetic
Scissoring of gait may be indicative of what?
Corticospinal dysfunction
What does the optic nerve project to?
LGN and superior colliculis
From where does the Oculomotor nerve project?
Midbrain
To where does the Oculomotor nerve project?
Iris
5 extraocular muscles
What does a lesion of the Oculomotor nerve result in?
Problems moving eyes upward, downward, or medial
What does a fixed dilated pupil suggest?
Herniation compressing CN III
What might marked pupillary construction indicate?
Pontine involvement or drug effects (morphine)
From where does the Trochlear nerve project?
Midbrain
To where does the Trochlear nerve project?
Superior oblique muscle of eye
From where does the Abducens nerve project?
Pons
To where does the Abducens nerve project?
Lateral rectus
What is the term for loss of a visual hemifield on the same side in both eyes?
Homonymous hemianopsia
Where is the possible lesion when there is a loss of a visual hemifield on the same side in both eyes?
LGN
Optic radiations
Contralateral occipital lobe