BIOL 105-- Chapter 25: Ear-Hearing-Equilibrium Crossword Puzzle Prof. Keating ACROSS 1 name for the membrane which is the roof of the cochlear duct 2 involuntary rolling of the eyes in any direction or, more typically, the trailing of the eyes slowly in one direction followed by their rapid movement in the opposite direction 5 receptor region in the ampulla which consists of a tuft of hair cells covered with a gelatinous cap or ampullary cupula 10 membrane into which the stereocilia project 11 suspended in perilymph in the inner ear and filled with endolymph 12 system of bony, torturous chambers in the inner ear 13 area of the inner ear concerned with hearing 14 membrane which forms the floor of the cochlear duct 16 another name for the pinna of the ear; the external, skin covered cartilaginous structure encircling the auditory canal opening 17 membrane in which hair cells in each macula are embedded and which is composed of a gelatinous material containing small grains of calcium carbonate 18 also called the tympanic cavity; a small chamber in the temporal bone D0WN 1 term for the equilibrium receptors of the inner ear 3 area of the inner ear which is filled with endolymph and supports the spiral organ 4 aqueous fluid which fills the bony labyrinth 6 small bones found in the tympanic cavity 7 type of sensorineural deafness that occurs normally in people by the time they are in their 60s 8 type of equilibrium which monitors head position and acceleration in a straight line 9 saclike membranes found in the vestibule of the inner ear; filled with endolymph and receptor cells which are stimulated by the bending of cilia 15 area at the base of each semicircular duct which communicates with the utricle of the vestibule BIOL 105-- Chapter 25: Ear-Hearing-Equilibrium Crossword Puzzle SOLUTION Prof. Keating