There are 12 pairs of cranial
are located in the head also called the cranium, or
cranial nerves are those that arise directly from your
brain or brainstem and often affect areas like the
face and eyes.The
cranial nerves control such functions as vision,
hearing, facial movement and the actions of some of
the organs in the head, chest, and abdomen.
neuropathy is when one or more of these nerves becomes
injured, or damaged.
of cranial Neuropathy
to these nerves can occur from many causes, with a
common one being diabetes. Cranial
neuropathy is a problem that is usually caused by
other medical conditions as well as trauma. (See
some cases, cranial neuropathy symptoms clear up
within a few months.
neuropathy can result in a wide range of symptoms
depending on which nerve is damaged.
functioning of the area it goes to
of certain glands
functioning of chest and abdominal organs such as the
heart and stomach.
of the most common cranial neuropathies is damage to
the seventh cranial nerve, called the facial nerve.
This can cause facial pain focused near one of the
eyes and paralysis of the eye muscles. Other problems
can also occur including facial tics, twitches,
can cause a complication called trigeminal neuralgia
resulting in severe facial pain. Bell’s
palsy is the condition which can occur when the facial
nerve is affected.
nerves are also involved with motor control,
instructing the muscles to move. Damage can result in
not allowing someone to smile or wink, the eye to
track moving objects, or the eye to focus.
of Cranial Neuropathy and the symptoms it creates
(first nerve) Loss or disturbance in the sense of smell.
(second nerve)Can cause blindness
(third nerve) Drooping of the eyelid, eyeball moves outward, dilation of
the pupil, double vision.These
symptoms occur because the third cranial nerve is
affected, and it helps to manage the muscles that move
(fourth nerve) Rotation of eyeball upward and outward, double vision
(fifth nerve) Sensory root – Pain or loss of sensation in the face,
forehead, temple and eyes. Motor root – effecting
the jaw, trouble chewing.
(sixth nerve) Deviation of the eyes outward; double vision
(seventh nerve) Paralysis of all the muscles in one side of the face,
inability to wrinkle the forehead, close the eye,
whistle, deviation of the mouth.
(eighth nerve) Deafness or ringing in the ears, dizziness, nausea and
(ninth nerve)Disturbance of taste; Difficulty in swallowing.
(tenth nerve) Hoarseness and difficulty swallowing and talking.
This nerve also regulates the heart, blood vessels and
digestion resulting in irregular heart beat and
lowered blood pressure.It regulates the stomach telling it to move
food through the digestive system, thus damage can
result in decreased digestion and thus nausea,
bloating and vomiting.
Accessory (eleventh) Dropping of the shoulder; inability to
rotate the head away from affected area.
(twelfth) Paralysis of one side of the tongue; deviation of tongue toward
paralyzed side; thick speech.
of the Named Conditions of the Cranial Nerves
The facial nerve is affected. It can cause drooping of
part of the face. It is believed to be caused by a
virus that causes swelling, and then puts pressure
(compression) on the facial nerve. It usually only
affects one side of the face.See Compression Neuropathy
cranial nerve palsy.
This condition affects the nerves in the eye. It is
most common in people who are diabetic and in those
who have high blood pressure. It can cause double
vision and other problems with eyesight.
nerve palsy (oculomotor nerve) Third
nerve palsy can cause an eyelid to sag and droop. It
can cause difficulty moving the eye, and a pupil can
be bigger than normal. It
can cause double vision. It can be caused by an injury
to the head or an infection. An aneurysm or brain
tumor may also cause damage to this nerve.
nerve palsy (throclear nerve)
it is also called superior oblique palsy. It
affects the muscle that is controlled by the fourth
cranial nerve. It can cause the eye (or eyes) to turn
abnormally and sometimes creates double vision. An
injury to the head, or a stroke or tumor can also
cause this condition.
nerve palsy (abducans nerve)
also called cranial nerve VI palsy; this nerve can be
damaged by an infection, a stroke or tumor, creating
increased pressure in the brain. Damage to the sixth
cranial nerve can cause abnormal movement of the eye
and double vision.
is common to have more than one cranial nerve damaged.
neuropathy like other neuropathy can have symptoms
that range from electrical shock, spasms, pain, or
numbness in the area it controls and when a motor
nerve is damaged – weakness and even paralysis.
can be done? Cranial neuropathy is
damage to the cranial nerves. There are
treatments for nerve damage or Neuropathy
You can read more about Neuropathyand its treatments
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