Read the following statements and identify the wrong ones among them:

(i) The oral cavity leads into a short larynx, which is a common opening for food and air.

(ii) A cartilaginous flap called “epiglottis” prevents the entry of food into the glottis.

(iii) The duct of the submaxillary gland is called the “Duct of Wirsung”.

(iv) Oesophagus leads into a J-shaped bag-like structure called “stomach”.