Carnial Nerves

There is 12 pair of cranial nerves:

* Olfactory

* Optic

* Oculomotor

* Trachlear

* Trigeminal

* Abduceens

* Facial

* Auditory vestibulochlear

* Glossopharyngeal

* Vagus

* Spinal accessory

* Hypoglossory

The cranial nerve are of three varieties, sensory, motor, and mix. The sensory nerve has fibers

That carries sensation such as taste, smell. The motor nerves are nerve that carries activating impulse to

the muscles and organs, causing them to function. Mixed nerves have both sensory and motor. The cranial

nerve are number from front to back.

Olfactory is a mall triangular area in the front of the anterior perforated substance. The olfactory

nerve is made up of axons from the olfactory receptors in the nasal sensory epithelium. It transport

olfactory information sense and smell to the olfactory bulb of the brain. This nerve has access to the

cerebral cortex, but does not pass through the thalamus like other cranial nerves.

Optic nerve is made up of axons of ganglion cells in the eye, it transport visual information to the

brain. This nerve travels posteromedially from the eye leavening from the orbit at the opic canal in the

lesser wing of the sphenoid bone. The optic nerve come together in the middle of the cranial fossa to

make up the optic chiasm.

Oculomotor nerve is made up of motor axons coming from the oculomotor. It is a pure motor

nerve. It supplies somatic motor innervations to four of the extrinsic eye muscles it also supplies the

upper eyelid and the papillary eye muscles

The trochlear supplies the somatic motor innervations to the superior oblique eye muscle.

Trochlear nerve come from the trochlear nucleus found in the tegmentum of the midbrain. it exit the

posterior side of the brainstem.

Trigeminal nerve is the largest cranial nerve. It supplies the sensory information for the face ,

forehead,