Cranial nerves:
The cranial nerves are a set of 12 paired nerves in the back of your brain. Cranial nerves send electrical signals between your brain, face, neck and torso. Your cranial nerves help you taste, smell, hear and feel sensations. They also help you make facial expressions, blink your eyes and move your tongue.
number of cranial nerves send electrical signals between your brain and different parts of your neck, head and torso. These signals help you smell, taste, hear and move your facial muscles.
The cranial nerves begin toward the back of your brain. They are a key part of your nervous system.
Your 12 cranial nerves each have a specific function. Experts categorize the cranial nerves based on number and function:
1.Olfactory nerve: Sense of smell.
2.Optic nerve: Ability to see.
3.Oculomotor nerve: Ability to move and blink your eyes.
4.Trochlear nerve: Ability to move your eyes up and down or back and forth.
5.Trigeminal nerve: Sensations in your face and cheeks, taste and jaw movements.
6.Abducens nerve: Ability to move your eyes.
7.Facial nerve: Facial expressions and sense of taste.
8.Auditory/vestibular nerve: Sense of hearing and balance.
9.Glossopharyngeal nerve: Ability to taste and swallow.
10.Vagus nerve: Digestion and heart rate.
11.Accessory nerve or spinal accessory nerve: Shoulder and neck muscle movement.
12.Hypoglossal nerve: Ability to move your tongue.
Your cranial nerves play a role in controlling your sensations and motor skills.
Sensory nerves help you:
Feel touch.
Hear.
See.
Smell.
Taste.
Motor nerves play a role in controlling your facial muscles or glands. Some cranial nerves have both sensory and motor functions
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