Question

question 27
which of the following is not a branch of the trigeminal nerve?
zygomatic nerve
ophthalmic nerve
maxillary nerve
mandibular nerve
question 28
all of the following cranial nerves have a functional classification of motor except:
oculomotor.
trochlear.
vestibulocochlear.
accessory.
question 29
cerebrospinal fluid is found in all of the following except the:
subarachnoid space.
central canal.
third ventricle.
subdural space.

Explanation:

• Question 27: The trigeminal nerve has three main branches: ophthalmic, maxillary, and mandibular. The zygomatic nerve is a branch of the maxillary nerve (itself a trigeminal branch), but it is not one of the three primary branches of the trigeminal nerve.
• Question 28: The oculomotor, trochlear, and accessory nerves are motor - type cranial nerves. The vestibulocochlear nerve is a sensory - type cranial nerve (related to hearing and balance).
• Question 29: Cerebrospinal fluid (CSF) is found in the subarachnoid space (surrounding the brain and spinal cord), the central canal (of the spinal cord), and the ventricles (including the third ventricle). The subdural space is between the dura mater and arachnoid mater and does not normally contain CSF (in a healthy state, it is a potential space).

Answer:

• Question 27: Zygomatic nerve
• Question 28: vestibulocochlear
• Question 29: subdural space