Cranial NerveBy pankaj Kukreti

What Are Cranial Nerve ? Nerve arise from brain called

cerebral or cranial nerve

Type For Cranial Nerve ?For Leaning Cranial Nerve Name There Is Small Term

Called

“OOOPTAFAGVAH” ,

In Which All Cranial Nerve first Name Letter included

There Are Two Main Type Of Cranial Nerve Found

According To Number , They May Be “X” Or “XII” In Number

Number Of Cranial Nerve ? In Chordates :-• Agantha (jaw less) = 8-10 pair cranial nerve• Gnathostomata = 10-12 pair of cranial nerve• In Pieces Chondrichthyes (Cartilaginous fish )

= 10 pair• In Pieces Osteichtyes (Bony fishes ) = 10 pair•  In Amphibian = 10 pair• In Reptilia =  12 pair• In Aves (Birds) = 12 pair

Defects Of Cranial Nerve ?Olfactory Nerve (Cranial Nerve I) - Anosmia

(loss of the sense of smell), hyposmia (a decreased sense of smell)

Optic Nerve (Cranial Nerve II) - Immediate monocular blindness (partial or complete)

Oculomotor Nerve (Cranial Nerve III) - Oculomotor nerve palsy, including isolated and bilateral oculomotor nerve palsies

Trochlear Nerve (Cranial Nerve IV) - Injury to the trochlear nerve can cause vertical diplopia on looking downward which improves with contralateral head tilt and worsens with ipsilateral head tilt

Defects Of Cranial Nerve ?Abducens Nerve (Cranial Nerve VI) - In a

complete injury of the abducens nerve, the affected eye is turned medially. In an incomplete injury, the affected eye is seen at midline at rest

Trigeminal Nerve (Cranial Nerve V) - Corneal drying, abrasions, and/or pain, decreased salivation, and, especially, anesthesia of the forehead, eyebrow, and/or nose can occur following TBI

Facial Nerve (Cranial Nerve VII) - Complete or partial paralysis of the face, hyperacusis, and/or an unusual or impaired sense of taste can occur following TBI

Defects Of Cranial Nerve ?Vestibulocochlear Nerve (Cranial Nerve VIII) -

Positional vertigo is the most common problem, although tinnitus, hearing loss, and deafness may also occur following TBI

Hypoglossal Nerve (Cranial Nerve XII) - Dysarthria and swallowing difficulties