Biology: Concepts and Applications (MindTap Course List)
Biology: Concepts and Applications (MindTap Course List)
10th Edition
ISBN: 9781305967335
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 30, Problem 13SA
Summary Introduction

Introduction:

The ear is one of the five sensory organs present in the body. The organ of Corti is situated between the vestibular duct and tympanic duct situated in the scala media of the cochlea that is present inside the inner ear. It is made up of mechanosensory cells that are also known as the hair cells. The sensory information about body orientation, motion and equilibrium are provided by the vestibular apparatus.

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The semicircular canals monitor angular movements of the head (dynamic euqilibrium), the receptor region in each ampulla is called a _______, which consists of a tuft of hair cells covered with a gelatinous cap (ampullary cupula).   A. crista ampullaris   B. utricle   C. vestibular apparatus   D. saccule ______ in the vestibule contain another set of hair cells that monitor head position an acceleration in a straight line (static equilibrium).   A. membranous semicircular ducts   B. otolith   C. maculae   D. ampullary cupula What test can be conducted to see if the semicircular canals are operating normally where the subject will experience a sensation that he/she is still rotating even though the chair has stopped turning and demonstrate nystagmus?   A. Weber test   B. Rinne test   C. Barany test   D. Romberg test
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