WebAug 25, 2024 · The facial nerve exits the skull via the stylomastoid foramen, after which it gives off the following branches: The posterior auricular nerve is the first extracranial branch to emerge which continues to provide motor innervation to the occipital belly of the occipitofrontalis muscle (occipital branch) and intrinsic auricular muscles (auricular … Web2 days ago · The main functions of the ear are, of course, hearing, as well as constantly maintaining balance. The ear is anatomically divided into three portions: External ear; ... Innervation: Posterior auricular nerve (branch …
Nervous system (ch 3) Flashcards Quizlet
WebMay 8, 2024 · Structure and Function. The posterior auricular nerve branches off of the facial nerve close to the stylomastoid foramen, the location in which the facial nerve … WebJan 19, 2024 · The auricularis posterior is a facial muscle that holds the outer part of the ear in place. It originates at the mastoid process, a section of the skull just behind the … healthy essentials lubbock tx
Facial Nerve: Anatomy, Function, and Treatment - Verywell Health
WebThe inferior surface and lobule are supplied by the great auricular nerve (C2-3). The superior cranial surface of the ear is innervated by the lesser occipital nerve (C2-3). The posterior inferior external auditory canal and inferior conchal bowl are innervated by the auricular branch (Arnold’s nerve) of the vagus nerve (Cranial Nerve X). WebFunction. The posterior auricular nerve draws the auricle of the outer ear backwards. This effect is usually very slight, although some people can wiggle their ears due to a more significant muscle movement. Postauricular reflex. The postauricular reflex is a vestigial myogenic muscle response in humans that acts to pull the ear upward and ... WebJul 15, 2024 · The cervical nerve controls the platysma, and the posterior auricular nerve controls the occipitalis muscle. ... However, impairment of any of the other three components of facial nerve function can occur as well. Bell’s Palsy . The most common condition affecting this cranial nerve, Bell’s palsy, can occur without a known cause (idiopathic ... healthy essentials coupons canada