Facial muscle anatomy pictures

Working in pairs on the left and right sides of the body, these muscles control the flexion and extension of the head and neck. Of these, four extrinsic muscle sets connecting the tongue to the surrounding bones move the tongue in virtually any direction, with fine shape changes such as for speech the province of the four intrinsic tongue muscles. The muscles of the middle ear contract to dampen the amplitude of vibrations from the eardrum to the inner ear. These muscles, including the masseter and temporalis, elevate the jaw forcefully during chewing and gently during speech. Located inside the eye, the intrinsic eye muscles work tirelessly to dilate the pupils and focus the lens of the eye to produce clear vision. An extensive complement of tightly interlaced muscles allows the tongue a range of complex movements for chewing and swallowing, as well as the important function of producing speech. The muscles of the face are unique among groups of muscles in the body.

The risorius and both the zygomaticus major and minor are the most important laughing muscles. Refer to the picture above for question 1 1. The branchiomotor component of the Facial nerve controls the muscle of facial expression through Nerve signals from the cranial nerve play important roles in sensing taste as well as controlling the muscles of the face, salivary glands, and lacrimal glands. Please note, any medical information on this website is based on the opinions of Swimming goggles used as moist chamber.

While most muscles connect to and move only bones, facial muscles mostly connect bones to skin. The muscles of the mouth are mainly responsible for the elevation and depression of the angle of the mouth, upper and lower lips and the opening and closure of the mouth. Another view of the fractured mastoid bone. Please note, any medical information on this website is based on the opinions of