1. Identify iris in this diagram.   D   B   A   C   Hint Hint       2. Layer of the eye in which rods and cones are found   Cornea   Sclera   Choroid   Retina   Hint       3. Smallest bone in the human body.   Incus   None of these   Hyoid   Stapes   Hint       4. Outermost coat of the eyeball consists of sclera and _______.   Uvea   Cornea   Retina   Choroid   Hint       5. Identify the structure 'A' in this diagram.   Optic Chiasma   Optic Papilla   Optic Nerve   Retina   Half-n-half Clue   6. Coiled structure located in the inner ear is known as _______.   Semicircular canal   Cochlea   Eustachian tube   Helico trema   Half-n-half Clue   7. Thin watery fluid, which is filled in the space just behind the cornea   Vitreous humor   Gel   Aqueous humor   Half-n-half Clue