Podcast
Questions and Answers
It is composed of auricle and external acoustic meatus
It is composed of auricle and external acoustic meatus
Outer ear
what most people call the “ear”—the shell-shaped structure surrounding the auditory canal opening
what most people call the “ear”—the shell-shaped structure surrounding the auditory canal opening
Auricle or the pinna
which secrete waxy yellow cerumen, or earwax, which provides a sticky trap for foreign bodies and repels insects
which secrete waxy yellow cerumen, or earwax, which provides a sticky trap for foreign bodies and repels insects
Ceruminous glands
Our hearing apparatus allows us to hear an extraordinary range of sound, and our highly sensitive equilibrium receptors keep our nervous system continually up to date on the position and
movements of the head.
Our hearing apparatus allows us to hear an extraordinary range of sound, and our highly sensitive equilibrium receptors keep our nervous system continually up to date on the position and movements of the head.
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The canal ends at the eardrum, which
separates the external from the middle ear
The canal ends at the eardrum, which separates the external from the middle ear
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is a small, air-filled, mucosa-lined cavity within the temporal bone
is a small, air-filled, mucosa-lined cavity within the temporal bone
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runs obliquely downward to
link the middle ear cavity with the throat, and the
mucosae lining the two regions are continuous.
runs obliquely downward to link the middle ear cavity with the throat, and the mucosae lining the two regions are continuous.
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Inflammation of the middle ear, is a fairly common result of a
sore throat, especially in children, whose pharyngotympanic tubes run more horizontally.
Inflammation of the middle ear, is a fairly common result of a sore throat, especially in children, whose pharyngotympanic tubes run more horizontally.
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What are the three smallest bone in the body
What are the three smallest bone in the body
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which transmit the vibratory motion of the eardrum to the fluids of the inner ear
which transmit the vibratory motion of the eardrum to the fluids of the inner ear
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What are the three subdivisions of the bony labyrinth
What are the three subdivisions of the bony labyrinth
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The bony labyrinth is filled with a plasmalike fluid called
The bony labyrinth is filled with a plasmalike fluid called
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The membranous
labyrinth itself contains a thicker fluid called
The membranous labyrinth itself contains a thicker fluid called
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The bony labyrinth is filled with a plasmalike fuid called_____?
The bony labyrinth is filled with a plasmalike fuid called_____?
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The equilibrium receptors of the inner ear, collectively called the_____?
The equilibrium receptors of the inner ear, collectively called the_____?
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The vestibular apparatus can be divided into two Chambers what are these?
The vestibular apparatus can be divided into two Chambers what are these?
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tiny stones made of calcium salts.
tiny stones made of calcium salts.
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receptors, found in the semicircular canals, respond to angular or rotational movements of the head rather than to
straight-line movements.
receptors, found in the semicircular canals, respond to angular or rotational movements of the head rather than to straight-line movements.
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is defined as hearing loss of
any degree—from a slight loss to a total inability to
hear sound.
is defined as hearing loss of any degree—from a slight loss to a total inability to hear sound.
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What are the two types of deafness
What are the two types of deafness
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results when something interferes with the conduction of sound vibrations to the fluids of the
inner ear. Something as simple as a buildup of earwax may be the cause
results when something interferes with the conduction of sound vibrations to the fluids of the inner ear. Something as simple as a buildup of earwax may be the cause
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A ruptured eardrum
A ruptured eardrum
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Inflammation in the middle ear
Inflammation in the middle ear
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occurs when there
is degeneration or damage to the receptor cells in
the spiral organ of Corti, to the cochlear nerve, or
to neurons of the auditory cortex.
occurs when there is degeneration or damage to the receptor cells in the spiral organ of Corti, to the cochlear nerve, or to neurons of the auditory cortex.
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A serious pathology of the inner ear is___? The exact cause of this condition is not fully known, but suspected causes are arteriosclerosis, degeneration of
cranial nerve VIII, and increased pressure of the
inner ear fluids.
A serious pathology of the inner ear is___? The exact cause of this condition is not fully known, but suspected causes are arteriosclerosis, degeneration of cranial nerve VIII, and increased pressure of the inner ear fluids.
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The receptors for taste and olfaction are classified as?
The receptors for taste and olfaction are classified as?
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The dorsal tongue surface is covered with mall peglike projections?
The dorsal tongue surface is covered with mall peglike projections?
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What is the receptor for the sense of taste?
What is the receptor for the sense of taste?
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respond to hydrogen
ions (H+), or the acidity of the solution;
respond to hydrogen ions (H+), or the acidity of the solution;
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receptors to metal ions in solution.
receptors to metal ions in solution.
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receptors to alkaloids;
receptors to alkaloids;
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a taste discovered by the Japanese, is elicited by the amino acid glutamate, which appears to be responsible for the “beef taste” of steak and the flavor of monosodium glutamate, a food additive.
a taste discovered by the Japanese, is elicited by the amino acid glutamate, which appears to be responsible for the “beef taste” of steak and the flavor of monosodium glutamate, a food additive.
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