The malleus, incus, and stapes are the tiny bones located in the (a) external ear, (b) middle ear, (c) internal ear, (d) membranous labyrinth.

dentify the structures of the external, middle, and internal ear in the following figure. a. ___b. ___c. ___d. ___e. ___f. ___g. ___h. ___i. ___

Auditory information about the frequency and intensity of stimulation is relayed to the CNS over the cochlear nerve, a division of cranial nerve (a) IV, (b) VI, (c) VIII, (d) X.

Displacement of stereocilia toward the kinocilium of a hair cell (a) produces a depolarization of the membrane, (b) produces a hyperpolarization of the membrane, (c) decreases the membrane permeability to sodium ions, (d) increases the membrane permeability to potassium ions, (e) does not affect the membrane potential of the cell.

Damage to the ampullary cupula of the lateral semicircular duct would interfere with the perception of (a) the direction of gravitational pull, (b) linear acceleration, (c) horizontal rotation of the head, (d) vertical rotation of the head, (e) angular rotation of the head.

What are the three auditory ossicles in the middle ear, and what are their functions?

The basic receptors in the internal ear are the (a) utricles, (b) saccules, (c) hair cells, (d) supporting cells, (e) ampullae.

Multiple ChoiceMore than one choice may apply.Sounds entering the external acoustic meatus are eventually converted to nerve impulses via a chain of events includinga. vibration of the eardrum.b. vibratory motion of the ossicles against the oval window.c. stimulation of hair cells in the spiral organ of Corti.d. resonance of the cupula.

Multiple ChoiceMore than one choice may apply.Which of the following are paired incorrectly?a. Cochlear duct—cupulab. Vestibule—maculac. Ampulla—otolithsd. Semicircular duct—ampulla