Cocaine can be detected in the system anywhere from 12 hours to 4 days after use. The length of time cocaine stays in your system depends on the dosage amount ingested, the route of administration and frequency of use. When cocaine is metabolized, the liver turns it into benzoylecgonine, which is then excreted in urine.
Other muscles involved in chewing are the obicularis oris and the zygomaticus. Both are lip muscles. The buccinator holds food in contact with the teeth. All three are innervated by the facial nerve (CN.
Muscles of Swallowing. The anterior portion of the neck is divided into the suprahyoid and infrahyoid muscle groups. The suprahyoid muscles pull the hyoid bone upward and forward causing the pharynx to widen. This also leads to the epiglottis closing the trachea preventing choking.