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Abducens nerve

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ABDUCENS NERVE ANATOMY

The abducen, which is a relatively small mixed nerve, can be traced back to its origin in the pons, continuing out along the lower segment of the pons and the anterior portion of the medulla oblongata.

It travels along the superior orbital fissure to reach its final destination, the lateral rectus eye muscle. It is its job to innervate this muscle. The impulses which race down the motor nerve fibers of the abducens cause the eyeball to move laterally away from the midline.

ABDUCENS NERVE FUNCTIONS

The muscle contracts and mediates in response to impulses the sensory impulses, which are sent by the proprioceptors in the lateral rectus muscle. These impulses are directed and mediated to the pons.

Damage to the abducens nerve would result in a two fold consequence. The eyeball would not be able to move in a lateral sense, and because there would be a void in muscular control the eye would also become pulled medially.

ABDUCENS NERVE DIAGRAM

Abducens nerve
Image: Abducens Nerve



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