The water cane in the larynx (saccules) are present in: (AIIMS Nov 2012)
It is a diverticulum of mucous membrane which starts from the anterior part of laryngeal ventricle extending between the vestibular folds and lamina of thyroid cartilage. The saccule has plenty of mucous glands whose main purpose is to lubricate the vocal cords (vocal cord is devoid of mucous glands) and hence is known as water can of larynx.
When distended the saccule can protrude through the thyrohyoid membrane in the neck and is known as Laryngocele.
Boyer's space - another name for the pre-epiglottic space which lies in front of epiglottic beneath the hyoid bone.