1. _______ filter the blood to excrete harmful substances in the form of urine.   Kidneys   Lungs   Urinary bladder   Endocrine Glands   Hint Half-n-half Clue   2. Gastric juice is secreted by   stomach   liver   small intestine   pancreas   Half-n-half Clue   3. 'C' shaped rings of cartilage are present in the   Trachea   Esophagus   Ureter   Intestines   Half-n-half Clue   4. Bile is secreted by the   liver   gall bladder   pancreas   small intestine   Half-n-half Clue   5. Food descends from the mouth to the stomach through the   esophagus   larynx   small intestine   trachea   Half-n-half Clue   6. Voice box is the name given to the   larynx   trachea   pharynx   oral cavity   Half-n-half Clue   7. What is the name of the sac-like structure which stores urine?   Urinary Bladder   Ureter   Kidney   Stomach   Half-n-half Clue