Test 2 Review

Question 1

Auditory information is sent from the ear to the brain through the _________.

Answer 1

Afferent auditory pathway

Question 2

The auditory-vestibular nerve is cranial nerve ______.

Answer 2

VIII

Question 3

The first central auditory system “way station” responsible for the localization of sound is _____________.

Answer 3

Superior olivary complex

Question 4

Crossover points uniting symmetrical portions of the two halves of the brain are called _______________.

Answer 4

Decussations

Question 5

The first anatomical site within the central auditory system where crossover is thought to occur is the ___________.

Answer 5

Cochlear nucleus

Question 6

The last subcortical relay station for auditory impulses is the ____________.

Answer 6

Medial geniculate body

Question 7

Heschl’s gyrus is located in the ______________.

Answer 7

cortex/temporal lobe

Question 8

Fluid contained in the vestibular portion of the membranous labyrinth is _______________.

Answer 8

Endolymph

Question 9

Three structures within the vestibule that monitor angular acceleration are (1)._________,(2.) __________, and (3.)___________.

Answer 9

1. Inferior (posterior) semicircular canal
2. Horizontal (lateral) semicircular canal
3. Superior (anterior) semicircular canal

Question 10

The branching portions or ____________ carries impulses to the neural cell body. The cell body is called a _____________, whereas the portion that carries impulses away from the cell body is called _____________.

Answer 10

1. Dendrites
2. Soma
3. Axon

Question 11

_____________ carry information to the periphery to the brain whereas _________ carry information from the brain to the periphery.

Answer 11

1. Afferent system

2. Efferent system

Question 12

The macula is a vestibular sensory organ contained in the _________ and ___________ which is responsible for monitoring linear acceleration.

Answer 12

1. Utricle

2. Saccule

Question 13

____________ is the widened ends of the semicircular canals that contain the christa.

Answer 13

Ampulla

Question 14

A child born with congenital absence of the inner ears would have a ________ degree of hearing loss which would be identified as a _____________ type of hearing impairment. The site of the disorder would be classified as __________.

Answer 14

1. Profound
2. Sensorineural
3. Peripheral or cochlear

Question 15

Hereditary sensory/cochlear hearing loss resulting from genetic and environmental interaction is called ___________.

Answer 15

Hereditodegenerative

Question 16

_____________ are organelles inside the cell’s cytoplasm which contain DNA separate from the those found in the cell nucleus. They are inherited entirely from the mother.

Answer 16

Mitochondria

Question 17

The normal number of chromosomes is _________. Abnormalities that produce an extra copy of whithin a given set of chromosomes are called __________ whereas a loss of one chromosome is called a _________.

Answer 17

1. 46 (23 pairs; 22 of which are autosomes and one set of sec chromosome)
2. Trisomy
3. Monosomy

Question 18

___________ inheritance pattern requires only one copy of a gene for a trait.

Answer 18

Dominant