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Cranial nerve VII
neupsykey.com
- The facial nerve, also known as cranial nerve VII, is a mixed nerve responsible for both motor and sensory functions. It innervates the muscles of facial expression, the lacrimal and salivary glands, and provides taste sensation to the anterior two-thirds of the tongue.
anatomy.co.uk/facial-nerve/
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- Facial Nerve Parasympathetic Functions
- Facial Nerve Sensory Functions
- Facial Nerve Motor Branches
The parasympathetic nerve fibers of your facial nerves control the salivary glands in your mouth and the lacrimal glands in the corners of your eyes. They trigger your salivary glands to release saliva(spit) and your lacrimal glands to release tears.
The sensory nerve fibers of your facial nerve play a key role in hearing. They provide innervation to your ear canal, tympanic membrane (eardrum) and outer ear (pinna). They also carry taste sensations from the front (anterior) two-thirds of your tongue.
Your facial nerve has five branches that have distinct motor (movement) functions: 1. Frontal (temporal) branch: Controls your forehead muscles. 2. Zygomatic branch: Helps you close your eyes. 3. Buccal branch: Allows you to move your nose and blink. It also makes it possible to raise your upper lip and the corners of your mouth to make a smile. 4....
Jun 23, 2024 · Overview. The facial nerve is associated with the derivatives of the second pharyngeal arch: Motor – muscles of facial expression, posterior belly of the digastric, stylohyoid and stapedius muscles. Sensory – a small area around the concha of the external ear.
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Oct 30, 2023 · The seventh cranial nerve (CN VII), the facial nerve, is responsible for providing motor innervation to these facial muscles, enabling you to smile or frown. In addition to motor fibers, this multitasking nerve also contains sensory and parasympathetic components.
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Jan 23, 2018 · The facial nerve is also known as the seventh cranial nerve (CN7). This nerve performs two major functions. It conveys some sensory information from the tongue and the interior of the...
The facial nerve is the 7th cranial nerve and carries nerve fibers that control facial movement and expression. The facial nerve also carries nerves that are involved in taste to the anterior 2/3 of the tongue and producing tears (lacrimal gland).
Jul 24, 2023 · The facial nerve provides motor innervation of facial muscles that are responsible for facial expression, parasympathetic innervation of the glands of the oral cavity and the lacrimal gland, and sensory innervation of the anterior two-thirds of the tongue. Go to: Structure and Function. The facial nerve carries both motor and sensory fibers.
