Exam 3 Chapter 9 Review

Complete the following statement using the appropriate technical term: The endolymph-filled cavities of saccule, the utricle, semicircular ducts, and the scala media form the _______.

• membranous labyrinth

• bony labyrinth

• cochlear duct

• vestibular system

Complete the following statement using the appropriate technical term: Located in the _______ ear, tensor tympani and stapedius muscle’s reflexively protect the auditory mechanism from damage by controlling ocular motion.

• middle

• inner

• outer

• internal

Complete the following statement using the appropriate technical term: The stapedius muscle, controlled by the _______ nerve (XII), restricts stapes movement. The tensor tympanum muscle, controlled by the trigeminal nerve (CN V), participates in restricting ossicular movement.

• facial

• vagus

• glossopharyngeal

• hypoglossal

Complete the following statement using the appropriate technical term: The _______ auditory system includes the signals from hair cells in the organ of Corti to the brain stem cochlear nuclear complex.

• retrocochlear

• peripheral

• central

• vestibular

Complete the following statement using the appropriate technical term: The _______ is the first structure to receive auditory inputs from both (the I psi lateral and the contra lateral) cochlear nucleus.

• superior olivary nucleus

• inferior colliculus

• medial geniculate body

• auditory cortex

Complete the following statement using the appropriate technical term: The _______ contains the brain stem auditory fibers that originate from the superior olivary nucleus and project to the inferior colliculus.

• lateral lemniscus

• medial geniculate body

• cochlear nucleus

• trapezoid body

Complete the following statement using the appropriate technical term: A lesion above the _______ is not likely to cause a profound hearing loss in either of the ears because of multiple crossings of the fibers.

• cochlear nuclear complex

• auditory cortex

• tympanic membrane

• oval window

Complete the following statement using the appropriate technical term: The transverse Herschel gyro are the site of the _______.

• primary auditory cortex

• visual cortex

• motor cortex

• somatosensory cortex

Complete the following statement using the appropriate technical term: The _______ (MGB) mediates auditory information from the thalamus to the primary auditory cortex.

• medial geniculate body

• lateral geniculate body

• inferior colliculus

• superior colliculus

The superior olivary nucleus has several functions. Which of the following is correct (2)?

• Receives projections from both ears

• First neuroaxial site to localize sound source

• Taste perception

• Motor coordination