HOW DO CRANIAL NERVES WORK?

THE CRANIAL NERVES 

CRANIAL NERVE    NAME OF CRANIAL           NERVE CRANIAL NERVE FUNCTION

I                                  OLFACTORY                       SERVES FOR SMELLING

II                                 OPTIC                                   PURPOSE IS FOR VISUAL ACUITY

III                               OCULOMOTOR                   CONTROL OF EYE MOVEMENT

IV                               TROCHLEAR                        CONTROL OF EYE MOVEMENT

V                                TRIGEMINAL                        USED  IN FACIAL SENSITIVITY

VI                               ABDUCENS                           CONTROL OF EYE MOVEMENT

VII                              FACIAL                                 CONTROLS FACIAL MUSCLES VIII                            ACOUSTIC                           FOR HEARING AND BALANCE

IX                              GLOSSOPHARYNGEAL      CONTROLS PHARYNGEAL MUSCLES

X                               VAGUS                                  HEART,BREATHING, DIGESTIVE

XI                              ACCESSORY                        CONTROLS MUSCLE  OF NECK

XII                            HYPOGLOSSAL                    TONGUE MOVEMENTS

THERE ARE 12 CRANIAL NERVES HAVING THEIR NUCLEUS OF ORIGIN OR OF DESTINATION IN THE BRAIN AND THAT EMANATES DIRECTLY FROM THE BRAIN OR THE BRAINSTEM. THESE NERVES ARE CALLED CRANIAL NERVES TO ASSOCIATE THEM AS THE NERVES OF THE BRAIN. THEY COME OUT FROM EACH SIDE OF THE BRAIN, AND, EVENTHOUGH EACH ONE HAS A NAME, THEY ARE EACH DESIGNATED WITH A NUMBER  ( A ROMAN NUMERAL) FROM 1 TO 12 ( I TO XII). THESE NERVES ARE VERY SIGNIFICANT WHEREAS THEY PICK UP IMPULSES TO THE BRAIN WHERE IT IS INTERPRETED INSTANTLY FOR INSTANCES ARE THE ACOUSTIC NERVE WHICH HELPS IN BRINGING IMPULSES OF HEARING UP TO THE BRAIN AND THE BRAIN TELLS YOU WHAT YOU HEAR. SOME OF THE NERVES CONTROL MUSCLE MOVEMENTS WHICH ARE IMPORTANT FOR PHYSICAL ACTIVITY.

OUR DAILY ACTIVITES RELAY EVERYTHING ON THE CRANIAL NERVES BECAUSE WITHOUT THEM WE ARE VEGETABLES. THE CRANIAL NERVE HYPOGLOSSAL IS IN CHARGE OF THE TONGUE MOVEMENT, WITHOUT THIS TYPE OF CRANIAL NERVE WE WOULD BE HAVING DIFFICULTY IN SWALLOWING OUR FOOD. WE WOULD NOT ENJOY EATING OUR FAVORITE DINER IF WE HAVE PROBLEMS IN THE AREA OF THIS TYPE OF CRANIAL NERVE. EVEN AN EENIE MINNIE PROBLEM IN THE AREA OF ANY CRANIAL NERVE WOULD RESULT OF AN UNDESIRABLE EFFECT INTO OUR SYSTEM.