The trochlear nerve (/ ˈ t r ɒ k l ɪər /), [1] (lit. pulley-like nerve) also known as the fourth cranial nerve, cranial nerve IV, or CN IV, is a cranial nerve that innervates a single muscle - the …

Your trochlear nerve, also known as the cranial nerve 4 or CN IV, is a motor (movement) nerve that sends signals from your brain to one of the muscles that control eye movement. You have …

Jul 15, 2023 · The trochlear nerve is the fourth cranial nerve (CN IV) and one of the ocular motor nerves that controls eye movement. The trochlear nerve, while the smallest of the cranial …

Feb 10, 2025 · The trochlear nerve is the fourth paired cranial nerve. It is the smallest cranial nerve (by number of axons) and the cranial nerve with the longest intracranial course. It has a …

Oct 30, 2023 · The trochlear nerve is the fourth paired cranial nerve (CN IV). Along with the oculomotor nerve (CN III) and the abducens nerve (CN VI) , it is responsible for controlling …

Congenital Trochlear nerve palsy is a common cause of congenital cranial nerve (CN) palsy. Patients with congenital CN IV palsies may compensate for diplopia with variable head …

Sep 25, 2024 · The trochlear nerve, also known as cranial nerve 4 (CN IV), controls the superior oblique muscle in your eye. This muscle allows you to move your eyeball down and shift your …

Dec 23, 2024 · The trochlear nerve is the fourth (CN IV) and thinnest cranial nerve. It exits the midbrain posteriorly, eventually passes into the cavernous sinus and into the orbit where it …

Jul 26, 2023 · The trochlear nerve is one of 12 pairs of cranial nerves that stem from the brain. Also known as CN IV or cranial nerve 4, it is the fourth set of nerves that extends from the …

Apr 10, 2019 · The trochlear nerve only consists of motor fibres and is the only cranial nerve to exit the brainstem posteriorly. We describe the anatomical course of the trochlear through the …