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.
Joseph Gordon-Levitt stars in the film as Snowden. Rounding out the cast are Zachary Quinto, Scott Eastwood and Nicolas Cage. Citizenfour, a documentary about Snowden and the NSA scandal, recently won the Oscar for Best Documentary Feature. On a less serious note, Woodley said she learned how to pole dance for the film for Mills' YouTube videos showing off her performing skills. It's so much fun, Woodley said.