Practice Questions: Chapter 5
Answered:
Correct:
Score:
%
1. Hair cells are:
A. sensory neurons that project their axons into the central nervous system
B. sensory neurons that synapse in the spiral ganglion
C. modified epithelial cells that make synaptic contact with peripheral process of spiral ganglion cells.
D. modified epithelial cells that are found exclusively in the organ of Corti
E. supporting structures in the organ of Corti and cristae of the saccule and utricle
2. Hair cells are functionally polarized which means that:
A. displacement of the kinocilium leads to excitation of the cell
B. distension of the basal body results in excitation
C. displacement of the stereocilia in the direction of the basal body is excitatory whereas displacement in the opposite direction is inhibitory
D. displacement of the stereocilia away from the kinocilium is excitatory whereas dis placement in the opposite direction is inhibitory
E. alternating to and fro movement of the stereocilia in any direction is excitatory to the cell