Bernoulli Effect
The vocal folds open due to pressure from the air from the lungs. *
True
False
When air flows through the glottis the pressure drops. *
True
False
When the pressured drops, the glottis opens. *
True
False
The vocal folds open and close many times a second when we make a voiced sound. *
True
False
How the ear works: part one
Sound waves travel at ....
*
11 feet per second
11,000 feet per second
1,100 feet per second
The outer part of the ear where signals are received is called the ...
*
the ear canal
tympanic membrane membrane
the eustachian tube
What is the name of the instrument used by phisicians to examine our ears?
*
Drumstick
Otoscope
Stethoscope
The tympanic membrane is also known as the drum membrane.
*
True
False
5) The tympanic membrane does not completely shut off the eardrum from the ear canal.
*
True
False
The eustachian tube links the ear canal to the ...
*
throat
brain
auditory centre
The hardest bony structure in the whole body is located in the temporal bone.
*
True
False
The ear is the only sense organ that lies close to the brain.
*
True
False
All sound waves entering the ear are converted into nerve impulses. *
True
False
The ear is divided into _______ main parts.
*
two
three
four
The external ear consists of the ...
*
meatus
shell or pinna
tympanum
Many of the parts of the ear (Meatus, etc.) are named after the scientists who first described them for the first time. *
True
False
The ear drum is also called the tympanum. *
True
False
The drum cavity connects with the throat through ... *
the eustachian tube
the drum membrane
the middle ear
The ear bones or ossicles are part of the ...
*
outer ear
middle ear
inner ear
The purpose of the eustachian tube is to ... *
balance the air pressure on both sides of the drum membrane
separate the outer and middle ear
stop air escaping out of the mouth
The inner ear is filled with air. *
True
False
Which bone is attached to the oval window? *
the hammer
the anvil
the stirrup
What agitates the liquid in the inner ear? *
the hammer
the anvil
the stirrup
How the ear works -part three
The inner ear is also called the labyrinth. *
True
False
The passages in the labyrynth are lined with *
hair
fur
membrane
The three semi-circular canals found in the labyrinth are actively related to the hearing mechanism. *
True
False
The cochlea is given that name because it looks like a snail. *
True
False
The cochlea contains a spiral passage called the vestibule. *
True
False
Sound waves are converted into nerve impulses *
in the inner ear
the outer ear
neither of the above
The spiral-shaped canal is split into ... *
two sections
three sections
four sections
The auditory nerve leads to the auditory centre. *
True
False
The spiral membrane shakes due to the movement of a. liquid in the cochlea. *
True
False