Description

The trochlear nerve is the fourth cranial nerve responsible for innervating the superior oblique muscle of the eye, which is involved in downward and lateral eye movement. It is the smallest cranial nerve and has a unique anatomical pathway as it decussates (crosses over) before innervating its target muscle.

Interpreter Notes

Interpreters should be aware that the term 'Cuarto Nervio Craneal' may sometimes be referred to colloquially as 'nervio troclear' in informal contexts. It is important to maintain a formal register and use the canonical term in clinical settings to avoid confusion. Additionally, be cautious not to confuse it with other cranial nerves that have similar functions.

Example Sentences

EN: The trochlear nerve plays a crucial role in controlling eye movement.

ES: El cuarto nervio craneal desempeña un papel crucial en el control del movimiento ocular.

Common Interpreter Mistakes

Confusing 'trochlear' with 'trigémino'; mispronouncing 'Cuarto Nervio Craneal' as 'Cuarto Nervio Cranial'; mixing up functions with the oculomotor nerve.