1. There are _______ pairs of salivary glands present in the mouth.   2   3    4    6   Hint Half-n-half Clue   2. How many teeth does an adult human being normally have?   16   20   30   32   Half-n-half Clue   3. Which of the following prevents food from entering the trachea (wind pipe)?   glottis   pharynx   larynx   epiglottis   Half-n-half Clue   4. The stomach is lined with mucous membrane.   True   False   5. The part of the tooth outside the socket of the jaw is known as the crown.   True   False   6. The pancreas is located in front of the stomach.   True   False   7. Which is not a part of the large intestine?   rectum   caecum   colon   ileum   Half-n-half Clue