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Oct 30, 2023 · Learn about the facial nerve (CN VII), the cranial nerve that innervates the muscles of facial expression, taste, salivary glands and more. Explore its origin, course, branches, functions and clinical conditions affecting it.
- Medical Content
- 29 min
Jun 23, 2024 · Learn about the course, branches and functions of the facial nerve, the seventh cranial nerve that innervates the muscles of facial expression, taste and glands. Find out the common clinical conditions affecting the facial nerve and their symptoms.
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The facial nerve is a cranial nerve that controls facial expression, taste and some head and neck glands. It travels from the brainstem to the face through the temporal bone and can be affected by various conditions such as Bell's palsy, Ramsay Hunt syndrome and tumors.
May 23, 2023 · The facial nerve is the seventh cranial nerve. It contains the motor, sensory, and parasympathetic (secretomotor) nerve fibers, which provide innervation to many areas of the head and neck region. The facial nerve is comprised of three nuclei:
- Sinali O. Seneviratne, Bhupendra C. Patel
- Curtin University, University of Utah
- 2021
- 2023/05/23
- Facial Nerve Parasympathetic Functions
- Facial Nerve Sensory Functions
- Facial Nerve Motor Branches
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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....
Learn about the facial nerve (CN VII), which controls facial muscles, salivary glands, lacrimal glands and hearing. Find out what can damage the facial nerve and cause facial nerve palsy, Bell's palsy or hemifacial spasm.
15 hours ago · Function. The facial nerve (cranial nerve VII) is a mixed nerve with motor, sensory, and parasympathetic functions. It is responsible for controlling the muscles of facial expression, providing taste sensation to the anterior two-thirds of the tongue, and innervating several glands involved in tear and saliva production.
Jul 15, 2022 · Learn about the facial nerve, one of the longest and most complex cranial nerves, that controls facial movements, tears, saliva, and taste. Find out how the facial nerve can be affected by conditions such as Bell's palsy and how to rehabilitate it.
