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All About Ears 2 Trivia Quiz

More ear anatomy from the anatomy professor!

A multiple-choice quiz by littlepitty. Estimated time: 5 mins.

Author
littlepitty

Time
5 mins

Type
Multiple Choice

Quiz #
244,715

Updated
Dec 03 21

# Qns
10

Difficulty
Difficult

Avg Score
4 / 10

Plays
1296

One at a Time - Single Page - Timed Game

Question 1 of 10

1. This Harvard physiologist won a Nobel Prize for his work with cochlear mechanics. Hint

Helmholtz

Bray

Wever

von Bekesy

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Question 2 of 10

2. The membranous labyrinth is filled with what type of fluid? Hint

cortilymph

perilymph

endolymph

cerebrospinal

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Question 3 of 10

3. This rapid back and forth movement of the eyes is associated with vertigo. Hint

nystagmus

dizziness

random

optokinesis

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Question 4 of 10

4. Identify one of the membranes that separates the bony labyrinth from the membranous labyrinth. Hint

Basilar Membrane

Hair cell membrane

Cochlear membrane

Corti's membrane

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Question 5 of 10

5. The flaccid portion of the tympanic membrane is referred to as: Hint

Vestibular Membrane

Shrapnell's Membrane

Tectorial Membrane

Jaspar's Membrane

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Question 6 of 10

6. These nerves carry impulses from the cochlea to the brain. Hint

dendrite

afferent

efferent

cortical

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Question 7 of 10

7. This bone is the largest in the ossicular chain. Hint

hyoid

malleus

incus

stapes

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Question 8 of 10

8. This organ provides nutrients to the cochlea. Hint

organ of Corti

stria vascularis

reticular lamina

Golgi apparatus

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Question 9 of 10

9. This is the term for the cochlear turn that protrudes into the middle ear space. Hint

sinus

partition

promontory

cleft

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Question 10 of 10

10. The temporal bone has five sections of varying density. Which portion is the hardest? Hint

petrous

squamous

mastoid

styloid

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Quiz Answer Key and Fun Facts

1. This Harvard physiologist won a Nobel Prize for his work with cochlear mechanics.

Answer: von Bekesy

Georg von Bekesy was awarded the Nobel Prize in Physiology and Medicine in 1961. He was a professor at Harvard University at the time of the award.

2. The membranous labyrinth is filled with what type of fluid?

Answer: endolymph

The fluid composition of the inner ear "drives" hearing. Endolymph is similar in composition to cerebrospinal fluid.

3. This rapid back and forth movement of the eyes is associated with vertigo.

Answer: nystagmus

Most people do not realize that the inner ear also has a vestibular portion responsible for balance and eye stabilization.

4. Identify one of the membranes that separates the bony labyrinth from the membranous labyrinth.

Answer: Basilar Membrane

The basilar membrane serves as the floor of the membranous labyrinth and supports the Organ of Corti, or end organ of hearing. The other membrane at the top is known as Reissner's membrane but that wasn't a choice for this question!

5. The flaccid portion of the tympanic membrane is referred to as:

Answer: Shrapnell's Membrane

This membrane is the small, triangular, flaccid portion of the tympanic membrane lying above the malleolar folds, attached directly to the petrous bone at the notch of Rivinus. It is named after Henry Jones Shrapnell.

6. These nerves carry impulses from the cochlea to the brain.

Answer: afferent

Afferent nerves carry information from any periphery site to the brain while efferent nerves carry impulses from the brain to the periphery.

7. This bone is the largest in the ossicular chain.

Answer: malleus

The malleus is the largest and is embedded in the tympanic membrane.

8. This organ provides nutrients to the cochlea.

Answer: stria vascularis

The stria vascularis secretes endolymph to ensure the proper balance of fluids is maintained within the cochlear duct.

9. This is the term for the cochlear turn that protrudes into the middle ear space.

Answer: promontory

The promontory is the first turn of the cochlea which protrudes into the middle ear space between the oval and round windows.

10. The temporal bone has five sections of varying density. Which portion is the hardest?

Answer: petrous

The hardest portion, petrous, also protects the inner ear.

Source: Author littlepitty

This quiz was reviewed by FunTrivia editor crisw before going online.
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