The epiglottis directs traffic. It is the flap that covers the larynx to prevent the passage of food and liquids. The glottis Also called the glottic cleft, is the space bâ¦etween the vocal folds & arytenoid cartilages of the larynx where speech takes place.    The epiglottis is the flap of cartilage covered by a membrane that  is attached to the entrance of the larynx. The glottis is part of  the larynx that is made up of the vocal cords.
The cast members of Lean on Me have been in many other movies, so use this list as a starting point to find actors or actresses that you may not be familiar with. Examples include Morgan Freeman and Mike Starr.
 Lean on Me  is a song written and recorded by American singer-songwriter Bill Withers. It was released in April 1972 as the first single from his second album, Still Bill. It was his first and only number one single on both the soul singles and the Billboard Hot 100.