Facial Muscles: The facial muscles are a group of skeletal muscles lying under the facial skin & supplied by the facial nerve (cranial nerve VII) that control facial expression. The facial muscles are also described as mimetic muscles. The facial muscles . Sep 20, · Somatic motor fibers in the facial nerve are responsible for innervating the muscles of facial expression and muscles in the scalp (which are derived from the second pharyngeal arch), as well as the stapedius muscle in the ear, the posterior belly of the digastric muscle, and the stylohyoid alisaxxx.xyzal relations: Palsy, inferior medial pontine syndome.
The facial nerve is the 7th cranial nerve innervating the muscles for facial expression. Recording compound muscle action potentials provides a quantitive assessment of nerve excitability. Comparisons are made with the nerve on the unaffected side. Recording site. Dec 15, · The facial nerve is a nerve that controls the muscles on the side of the face. It allows us to show expression, smile, cry, and wink.
Dec 06, · 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/5(). Jan 23, · Specifically, CN7 serves about two-thirds of the tongue’s tip. The nerve extends from the brain stem, at the pons and the medulla. Also, this nerve innervates facial muscles.
May 11, · The facial nerve and its branches regulate a number of functions of the mouth and face. Most of its divisions stimulate muscles that allow eyelids to open and close, as well as facial movements. This nerve also mediates the production of tears and saliva and perception of taste in the tongue and receives some sensory input from the face as well. The main function of the facial nerve is motor control of all of the muscles of facial expression. It also innervates the posterior belly of the digastric muscle, the stylohyoid muscle, and the stapedius muscle of the middle ear. All of these muscles are striated muscles of branchiomeric origin developing from the 2nd pharyngeal arch.