A complex system of nerves and muscles enables the human eye to blink, gaze, and shift focus. The trochlear nerve is one of six cranial nerves that carry electrical impulses from the brain to the eye.

The Cranial Nerves song covers the 12 pairs of cranial nerves and their functions and is used by medical students the world over to help them learn the cranial nerves. Students use the lyric sheet and ...

This article discusses how the cranial nerves work as components of the peripheral nervous system; these are special nerves associated with the brain. This is a Self-assessment article and comes with ...

The abducens nerve is also known as the abducent or sixth cranial nerve (CN6). It controls the eye’s lateral rectus muscle, which moves the eye sideways, away from the nose. Where the pons (a band of ...

The nervous system is formed of two parts that are integrally linked with each other. The brain and the nervous system has multiple functions that are vital for normal functioning of the body. A nerve ...

A paralyzed man with a spinal cord injury to the C7 vertebrae is able to move his fingers again. Surgeons at Washington University School of Medicine rerouted working nerves in the patient's upper ...

The trochlear nerve is also known as cranial nerve IV (CN-IV). It is the only cranial nerve that emerges dorsally from the brain (near the back), giving it the longest pathway. It is the smallest ...