Damage to the trochlear nerve ( IV ) can also cause diplopia with the eye adducted and elevated.
12.
This is due to impairment in the superior oblique muscle, which is innervated by the trochlear nerve.
13.
The base is concave, and the head presents a trochlear surface for articulation with the second phalanx.
14.
Directly rostral to the superior cerebellar peduncle, there is the superior medullary velum and then the two trochlear nerves.
15.
The nuclei of the oculomotor nerve ( III ) and trochlear nerve ( IV ) are located in the midbrain.
16.
A kneecap in an " alta " position sits above the " trochlear groove " and therefore is less stable.
17.
The trochlear nucleus is unique in that its axons run dorsally and cross the midline before emerging from the brainstem posteriorly.
18.
The oculomotor nerve comes out between the peduncles, and the trochlear nerve is visible wrapping around the outside of the peduncles.
19.
The trochlear nucleus and its axons within the brainstem can be damaged by infarctions, hemorrhage, arteriovenous malformations, tumors and demyelination.
20.
On the lateral side is commonly a tubercle called the "'calcaneal tubercle "'( or trochlear process ).
