1. Which of the following prevents food from entering the trachea (wind pipe)?   glottis   pharynx   larynx   epiglottis   Hint Half-n-half Clue   2. Which is not a part of the large intestine?   caecum   colon   ileum   rectum   Half-n-half Clue   3. Which of the following is the common passage for the food eaten and the air breathed?   trachea   esophagus   larynx   pharynx   Half-n-half Clue   4. The part of the tooth outside the socket of the jaw is known as the crown.   True   False   5. The minute projections present in the small intestine are called cilia.   True   False   6. Which is the largest organ in the human body?   liver   pancreas   large intestine   small intestine   Half-n-half Clue   7. The mucus in the stomach protects the stomach tissues from the action of enzymes.   True   False