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The Vertebrate Auditory System

Across
_________ matching; mechanisms to convert sound waves in the air to sound waves in the fluid of the inner ear
Otherwise known as the "hammer"; middle ear ossicle connected to the tympanic membrane that transmits sound vibrations from the tympanic membrane to the anvil
Scala _______ (tympanic duct); perilymph-filled cavity connected to the round window
Many short cilia on the hair cells of vertebrates; stiff and nonmotile
Mechanosensitive ___ channels on hair cell cilia allow passage of K+ and Ca2+
Scala ________ (vestibular duct); perilymph-filled cavity connected to the oval window
_________ discrimination; pitch sensitivity, or the ability to discriminate between sounds with different frequencies
_______ membrane; divides scalae media and tympani and has the organ of Corti sitting on top of the membrane
Down
Otherwise known as the "stirrup"; middle ear ossicle that transmits sound vibrations from the anvil to the oval window of the inner ear
_________ membrane; hinge mechanism causes the membrane's lateral movement, bending the cilia of the hair cells, opening K+ and Ca2+ mechanosensitive ion channels
________ membrane; transmits sound from the outer ear to the ossicles of the middle ear as vibrations
Single long cilium on the hair cells of vertebrates; flexible and motile
Spiral shaped structure responsible for transducing fluid sound waves to electrical impulses sent to the integrating centre, the brain, to be processed
Scala _____ (cochlear duct); endolymph-filled cavity containing the organ of Corti and residing between the tympanic and vestibular ducts
Otherwise known as the "anvil"; middle ear ossicle that transmits sound vibrations received from the hammer to the stirrup