Auditory System

Question 1

Insertional plaque

Answer 1

The point of attachment of a tip link to a cilium

Question 2

Cochlear nucleus

Answer 2

One of a group of nuclei in the medulla that receive auditory information from the cochlea

Question 3

Basilar membrane

Answer 3

A membrane in the cochlea of the inner ear; contains the organ of corti

Question 4

Tectorial membrane

Answer 4

A membrane located above the basilar membrane; serves as a shelf against which the cilia of the auditory hair cells move

Question 5

Superior olivary complex

Answer 5

A group of nuclei in the medulla; involved with auditory functions, including localization of the source of sounds

Question 6

Lateral lemniscus

Answer 6

A band of fibers running rostrally through the medulla and pons; carries fibers of the auditory system

Question 7

Dorsal stream of primary auditory cortex

Answer 7

Extends to the posterior parietal cortex; involved in sound location (the “where”)

Question 8

Ventral stream of primary auditory cortex

Answer 8

Extends to the anterior temporal lobe; involved in analysis of complex sounds (identity, the what)

Question 9

Amusia

Answer 9

Loss or impairment of musical abilities (perception and production of melodies and rhythms)

Question 10

Organ of corti

Answer 10

Receptive organ for audition