Cranial Nerves List and Function PDF Download

The Cranial Nerves List consists of 12 pairs of nerves that emanate from the brain, playing a vital role in sustaining essential bodily functions. These nerves have diverse functions, including transmitting sensory information, regulating muscle activity, and overseeing the functioning of glands and internal organs.

These cranial nerves are responsible for conveying information from the brain to various parts of the body, particularly the head and neck regions. Present in pairs on both sides of the body, they play a pivotal role in facilitating functions such as olfaction, vision, hearing, and muscle coordination. In contrast to spinal nerves, cranial nerves originate directly from the brain and exit through its foramina. The majority of these nerves have their origins in the brainstem and extend through the muscles and sensory organs in the head and neck. Consequently, cranial nerves are primarily associated with the head, neck, and other facial regions of the body.

Cranial Nerves List


Cranial Nerves List

The 12 cranial nerves are designated Roman numerals according to their sequential emergence from the brain, starting from the front and concluding at the back. Although cranial nerves are typically categorized as part of the peripheral nervous system, the olfactory and optic nerves are regarded as constituents of the central nervous system. The majority of these nerves pertain to the somatic system, governing sensory and motor functions. Certain cranial nerves exclusively house sensory or motor fibers, whereas others are mixed nerves, encompassing both types of fibers.

Below is the list of cranial nerves, their location and their respective functions.

Cranial Nerves ListLocationTypeFunction
Olfactory (I)Cribriform plateSensorySmell
Optic (II)Optic foramenSensoryVision
Oculomotor (III)Superior orbital fissureMotorEye movement
Trochlear (IV)Superior orbital fissureMotorEye movement
Trigeminal (V)Superior orbital fissureMixedFacial sensation
Abducens (VI)Superior orbital fissureMotorEye movement
Facial (VII)Internal auditory canalMixedFacial expression
Vestibulocochlear nerve (VIII) (auditory vestibular nerve)Internal auditory canalSensoryHearing and balance
Glossopharyngeal (IX)Jugular foramenMixedOral sensation and taste
Vagus (X)Jugular foramenMixedVagus nerve
Accessory (XI)Jugular foramenMotorShoulder elevation and head-turning
Hypoglossal (XII)HypoglossalMotorTongue movement

Cranial Nerves list and Function PDF

Download list of Cranial Nerves with their function pdf from below link.

Post a Comment