1. 3   Food is mixed with saliva here.   Absorption of food occurs here.   Churning of food occurs here.   It secretes saliva.   Hint Half-n-half Clue   2. 15   Absorption of food occurs here.   Larger dust particles in the inhaled air are trapped in the mucus and hair found here.   It is a muscular tube containing semicircular rings of cartilages.   Bile is secreted here.   Half-n-half Clue   3. 7   Exchange of gases occurs here.   Bile is stored here.   Larger dust particles in the inhaled air are trapped in the mucus and hair found here.   It secretes saliva.   Half-n-half Clue   4. 8   Food is mixed with saliva here.   Bile is secreted here.   It pumps blood to various parts of the body.   These are formed by division of trachea.   Half-n-half Clue   5. 9   Undigested food is excreted out of the body through this opening.   Food descends from mouth to stomach through this muscular tube.   Bile is stored here.   Most of the ingested water is absorbed here.   Half-n-half Clue   6. 10   Churning of food occurs here.   Larger dust particles in the inhaled air are trapped in the mucus and hair found here.   Exchange of gases occurs here.   Bile is stored here.   Half-n-half Clue   7. 1   Absorption of food occurs here.   Larger dust particles in the inhaled air are trapped in the mucus and hair found here.   Bile is secreted here.   Food is mixed with saliva here.   Half-n-half Clue