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The mylohyoid elevates the hyoid and the tongue. This is particularly important during swallowing and speaking. Alternatively, if other muscles are used to keep the position of the hyoid fixed, then the mylohoid depresses the mandible. It also functions as reinforcing the floor of mouth. This muscle is supplied by inferior alveolar nerve (branch of mandibular nerve). See more about this muscle here Mylohyoid muscle - Wikipedia. You can find the function of any other muscle in the same way, more easily than asking on Quora and awaiting answers that may or may not be right.
The muscle starts at the styloid process, a pointed part of the skull's temporal bone, which lies just below the ear and functions as an anchor point for a number of muscles. The stylohyoid is located just in front of the digastric muscle, which lifts the tongue back when swallowing. It is perforated (run through) by a facial tendon â the digastric tendon â before it slots into the hyoid bone. The stylohyoid muscle is given instructions by the facial nerve.