Auditory Anatomy and Pathophysiology BB Quiz Flashcards
What is the approximate length of the external auditory meatus in an adult human ear? A. 0.5cm B. 1.5cm C. 2.5cm D. 3.5cm
C
What describes best the anterior
recess of the external auditory meatus (EAM)?
A. A connection between the cartilaginous and bony parts of the EAM.
B. The deep bony part of the EAM connecting to the tympanic membrane.
C. The flexible cartilaginous part of the EAM.
D. The lower part of the tympanic membrane.
B
Where is the air/fluid interface in the middle ear?
Where the stapes meets the oval window.
Where the malleus meets the incus meets the malleus.
Where the Eustachian tube opens into the middle ear cavity.
Where the stapes meets the incus.
Where the stapes meets the oval window.
What is the general characteristic of the tympanic membrane that has naturally repaired following perforation?
The repaired region has no epithelial layer.
The repaired region has no mucosal layer.
The repaired region has no fibrous layer.
The repaired region has no cartilaginous layer
The repaired region has no fibrous layer.
Which structure in the auditory pathway receives information about both sound delay and sound intensity?
Lateral superior olive.
Medial superior olive.
Inferior colliculus.
Superior colliculus
Inferior colliculus.
Which one of the following mechanisms is an example of frequency coding in the nervous system?
The location of displacement of the vestibular membrane in the cochlea represents a specific sound tone.
An increase in pressure on a Pacinian corpuscle results in an increased rate of action potential generation in its sensory nerve.
Overlapping annular receptive fields in the secondary somatosensory cortex respond maximally to rectangular tactile stimuli.
The release of neurotransmitter from a greater number of vesicles in a nerve terminal results in a greater postsynaptic potential amplitude.
An increase in pressure on a Pacinian corpuscle results in an increased rate of action potential generation in its sensory nerve.
Which one of the following statements about Eustachian tube opening is correct?
Eustachian tube opens in Neural tube.
Eustachian tube opens in middle ear.
Eustachian tube opens in middle ear and Naso-pharynx.
Eustachian tube opens in middle ear and Oro-pharynx.
Eustachian tube opens in middle ear and Naso-pharynx.
Which of the following statements about otitis media with effusion is true?
It is preceded by negative middle ear pressure.
It is an infection of the middle ear.
It causes sensorineural hearing impairment.
It is directly caused by parental smoking.
It is preceded by negative middle ear pressure.
For which one of the following is an air-conduction hearing aid generally going to be least effective?
Presbycusis.
Otosclerosis.
Malignant otitis externa.
Otitis media with effusion.
Malignant otitis externa.
Which one of the following would be a common complication of chronic otitis media without intervention?
Mastoiditis.
Menieres.
Otosclerosis.
Acoustic neuroma.
Mastoiditis.
Which of the following describes the epitympanic recess?
The part of the middle ear cavity superior to the Eustachian tube.
The attic region of the middle ear cavity lateral to the head of the malleus.
It is the pars flaccida by the head.
It is attached to the umbo by the head.
The attic region of the middle ear cavity lateral to the head of the malleus.
Which of the following statements about acute otitis media is true?
It is more common in adults than children.
It is an untreatable middle ear infection.
It is an infection caused by Haemophilus influenzae.
It is problematic as it frequently leads to a perilymph fistula.
It is an infection caused by Haemophilus influenzae.
In chronic otitis media infection, examination of the tympanic membrane is likely to show which of the following features?
A red tympanic membrane with the presence of a perforation.
A Schwartz sign.
A dull retracted tympanic membrane.
A transparent drum with a clear light reflex.
A red tympanic membrane with the presence of a perforation.
Which of the following is another name for cholesteotoma?
A furuncle.
An osteomata.
An atico-antral disease.
A basal cell carcinoma.
An atico-antral disease
Which of the following factors leads to a greater susceptibility to hearing damage for people who work in noise?
They have an osteoma.
They are on ototoxic medication.
They have otitis media with effusion.
They are taking anti-emetics.
They are on ototoxic medication.
