1. The end organs (receptors) of taste sensation are called _______.   Hint First letter clue   2. Thin watery fluid, which is filled in the space just behind the cornea   First letter clue   3. True or false: The end organs (receptors) of smell are known as olfactory neurons.   Hint       4. Identify iris in this diagram.   Hint       5. Coiled structure located in the inner ear is known as _______.   First letter clue   6. Viscous fluid filled in the space behind the lens:   First letter clue   7. Identify the structure 'A' in this diagram.   First letter clue